Home / 712,712.60-1,069,068.18-291,989.24

Finding the Fourth Proportional to 712,712.60, 1,069,068.18 and 291,989.24

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Solution

The fourth proportional to 712,712.60, 1,069,068.18 and 291,989.24 is: 437,983.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,712.60 : 1,069,068.18 = 291,989.24 : x
  2. Step 2: Convert to fraction form
    712,712.60/1,069,068.18 = 291,989.24/x
  3. Step 3: Cross multiply
    712,712.60x = 1,069,068.18 × 291,989.24
  4. Step 4: Simplify right side
    712,712.60x = 312,156,405,386.38
  5. Step 5: Solve for x
    x = 312,156,405,386.38/712,712.60
  6. Step 6: Final answer
    x = 437,983.57

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Double scale
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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.