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Finding the Fourth Proportional to 713,371.40, 984,426.14 and 386,677.40

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Solution

The fourth proportional to 713,371.40, 984,426.14 and 386,677.40 is: 533,600.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,371.40 : 984,426.14 = 386,677.40 : x
  2. Step 2: Convert to fraction form
    713,371.40/984,426.14 = 386,677.40/x
  3. Step 3: Cross multiply
    713,371.40x = 984,426.14 × 386,677.40
  4. Step 4: Simplify right side
    713,371.40x = 380,655,340,307.24
  5. Step 5: Solve for x
    x = 380,655,340,307.24/713,371.40
  6. Step 6: Final answer
    x = 533,600.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.