Home / 858,310.11-1,287,465.17-457,737.30

Finding the Fourth Proportional to 858,310.11, 1,287,465.17 and 457,737.30

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Solution

The fourth proportional to 858,310.11, 1,287,465.17 and 457,737.30 is: 686,605.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,310.11 : 1,287,465.17 = 457,737.30 : x
  2. Step 2: Convert to fraction form
    858,310.11/1,287,465.17 = 457,737.30/x
  3. Step 3: Cross multiply
    858,310.11x = 1,287,465.17 × 457,737.30
  4. Step 4: Simplify right side
    858,310.11x = 589,320,828,471.16
  5. Step 5: Solve for x
    x = 589,320,828,471.16/858,310.11
  6. Step 6: Final answer
    x = 686,605.95

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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.