Home / 731,639.76-1,009,702.08-409,330.64

Finding the Fourth Proportional to 731,639.76, 1,009,702.08 and 409,330.64

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Solution

The fourth proportional to 731,639.76, 1,009,702.08 and 409,330.64 is: 564,898.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    731,639.76 : 1,009,702.08 = 409,330.64 : x
  2. Step 2: Convert to fraction form
    731,639.76/1,009,702.08 = 409,330.64/x
  3. Step 3: Cross multiply
    731,639.76x = 1,009,702.08 × 409,330.64
  4. Step 4: Simplify right side
    731,639.76x = 413,301,998,615.73
  5. Step 5: Solve for x
    x = 413,301,998,615.73/731,639.76
  6. Step 6: Final answer
    x = 564,898.22

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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.