Home / 712,711.60-1,069,066.68-291,988.24

Finding the Fourth Proportional to 712,711.60, 1,069,066.68 and 291,988.24

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Solution

The fourth proportional to 712,711.60, 1,069,066.68 and 291,988.24 is: 437,982.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,711.60 : 1,069,066.68 = 291,988.24 : x
  2. Step 2: Convert to fraction form
    712,711.60/1,069,066.68 = 291,988.24/x
  3. Step 3: Cross multiply
    712,711.60x = 1,069,066.68 × 291,988.24
  4. Step 4: Simplify right side
    712,711.60x = 312,154,898,335.84
  5. Step 5: Solve for x
    x = 312,154,898,335.84/712,711.60
  6. Step 6: Final answer
    x = 437,982.07

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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.