Home / 731,631.72-1,009,691.04-409,322.64

Finding the Fourth Proportional to 731,631.72, 1,009,691.04 and 409,322.64

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Solution

The fourth proportional to 731,631.72, 1,009,691.04 and 409,322.64 is: 564,887.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,631.72 : 1,009,691.04 = 409,322.64 : x
  2. Step 2: Convert to fraction form
    731,631.72/1,009,691.04 = 409,322.64/x
  3. Step 3: Cross multiply
    731,631.72x = 1,009,691.04 × 409,322.64
  4. Step 4: Simplify right side
    731,631.72x = 413,289,402,077.15
  5. Step 5: Solve for x
    x = 413,289,402,077.15/731,631.72
  6. Step 6: Final answer
    x = 564,887.21

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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.