Home / 712,277.80-1,068,416.70-213,641.80

Finding the Fourth Proportional to 712,277.80, 1,068,416.70 and 213,641.80

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Solution

The fourth proportional to 712,277.80, 1,068,416.70 and 213,641.80 is: 320,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,277.80 : 1,068,416.70 = 213,641.80 : x
  2. Step 2: Convert to fraction form
    712,277.80/1,068,416.70 = 213,641.80/x
  3. Step 3: Cross multiply
    712,277.80x = 1,068,416.70 × 213,641.80
  4. Step 4: Simplify right side
    712,277.80x = 228,258,466,938.06
  5. Step 5: Solve for x
    x = 228,258,466,938.06/712,277.80
  6. Step 6: Final answer
    x = 320,462.70

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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.