Home / 931,399.92-1,396,657.62-425,810.88

Finding the Fourth Proportional to 931,399.92, 1,396,657.62 and 425,810.88

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Solution

The fourth proportional to 931,399.92, 1,396,657.62 and 425,810.88 is: 638,514.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,399.92 : 1,396,657.62 = 425,810.88 : x
  2. Step 2: Convert to fraction form
    931,399.92/1,396,657.62 = 425,810.88/x
  3. Step 3: Cross multiply
    931,399.92x = 1,396,657.62 × 425,810.88
  4. Step 4: Simplify right side
    931,399.92x = 594,712,010,230.91
  5. Step 5: Solve for x
    x = 594,712,010,230.91/931,399.92
  6. Step 6: Final answer
    x = 638,514.13

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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.