Home / 747,288.30-1,031,280.64-425,044.82

Finding the Fourth Proportional to 747,288.30, 1,031,280.64 and 425,044.82

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Solution

The fourth proportional to 747,288.30, 1,031,280.64 and 425,044.82 is: 586,574.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,288.30 : 1,031,280.64 = 425,044.82 : x
  2. Step 2: Convert to fraction form
    747,288.30/1,031,280.64 = 425,044.82/x
  3. Step 3: Cross multiply
    747,288.30x = 1,031,280.64 × 425,044.82
  4. Step 4: Simplify right side
    747,288.30x = 438,340,493,998.29
  5. Step 5: Solve for x
    x = 438,340,493,998.29/747,288.30
  6. Step 6: Final answer
    x = 586,574.81

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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.