Home / 923,443.60-1,385,165.40-292,421.20

Finding the Fourth Proportional to 923,443.60, 1,385,165.40 and 292,421.20

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Solution

The fourth proportional to 923,443.60, 1,385,165.40 and 292,421.20 is: 438,631.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,443.60 : 1,385,165.40 = 292,421.20 : x
  2. Step 2: Convert to fraction form
    923,443.60/1,385,165.40 = 292,421.20/x
  3. Step 3: Cross multiply
    923,443.60x = 1,385,165.40 × 292,421.20
  4. Step 4: Simplify right side
    923,443.60x = 405,051,728,466.48
  5. Step 5: Solve for x
    x = 405,051,728,466.48/923,443.60
  6. Step 6: Final answer
    x = 438,631.80

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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.