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Finding the Fourth Proportional to 655,915.64, 982,837.20 and 495,231.08

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Solution

The fourth proportional to 655,915.64, 982,837.20 and 495,231.08 is: 742,064.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,915.64 : 982,837.20 = 495,231.08 : x
  2. Step 2: Convert to fraction form
    655,915.64/982,837.20 = 495,231.08/x
  3. Step 3: Cross multiply
    655,915.64x = 982,837.20 × 495,231.08
  4. Step 4: Simplify right side
    655,915.64x = 486,731,528,020.18
  5. Step 5: Solve for x
    x = 486,731,528,020.18/655,915.64
  6. Step 6: Final answer
    x = 742,064.22

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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.