Home / 731,398.08-1,009,422.72-409,126.08

Finding the Fourth Proportional to 731,398.08, 1,009,422.72 and 409,126.08

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Solution

The fourth proportional to 731,398.08, 1,009,422.72 and 409,126.08 is: 564,646.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,398.08 : 1,009,422.72 = 409,126.08 : x
  2. Step 2: Convert to fraction form
    731,398.08/1,009,422.72 = 409,126.08/x
  3. Step 3: Cross multiply
    731,398.08x = 1,009,422.72 × 409,126.08
  4. Step 4: Simplify right side
    731,398.08x = 412,981,160,496.54
  5. Step 5: Solve for x
    x = 412,981,160,496.54/731,398.08
  6. Step 6: Final answer
    x = 564,646.22

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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.