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Finding the Fourth Proportional to 524,935.40, 724,410.66 and 286,471.40

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Solution

The fourth proportional to 524,935.40, 724,410.66 and 286,471.40 is: 395,330.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,935.40 : 724,410.66 = 286,471.40 : x
  2. Step 2: Convert to fraction form
    524,935.40/724,410.66 = 286,471.40/x
  3. Step 3: Cross multiply
    524,935.40x = 724,410.66 × 286,471.40
  4. Step 4: Simplify right side
    524,935.40x = 207,522,935,945.12
  5. Step 5: Solve for x
    x = 207,522,935,945.12/524,935.40
  6. Step 6: Final answer
    x = 395,330.43

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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.