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Finding the Fourth Proportional to 731,690.92, 1,009,891.14 and 445,303.08

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Solution

The fourth proportional to 731,690.92, 1,009,891.14 and 445,303.08 is: 614,614.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,690.92 : 1,009,891.14 = 445,303.08 : x
  2. Step 2: Convert to fraction form
    731,690.92/1,009,891.14 = 445,303.08/x
  3. Step 3: Cross multiply
    731,690.92x = 1,009,891.14 × 445,303.08
  4. Step 4: Simplify right side
    731,690.92x = 449,707,635,106.71
  5. Step 5: Solve for x
    x = 449,707,635,106.71/731,690.92
  6. Step 6: Final answer
    x = 614,614.21

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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.