Home / 766,885.60-1,150,328.40-198,265.60

Finding the Fourth Proportional to 766,885.60, 1,150,328.40 and 198,265.60

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Solution

The fourth proportional to 766,885.60, 1,150,328.40 and 198,265.60 is: 297,398.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,885.60 : 1,150,328.40 = 198,265.60 : x
  2. Step 2: Convert to fraction form
    766,885.60/1,150,328.40 = 198,265.60/x
  3. Step 3: Cross multiply
    766,885.60x = 1,150,328.40 × 198,265.60
  4. Step 4: Simplify right side
    766,885.60x = 228,070,550,423.04
  5. Step 5: Solve for x
    x = 228,070,550,423.04/766,885.60
  6. Step 6: Final answer
    x = 297,398.40

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.