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Finding the Fourth Proportional to 437,856.80, 655,402.80 and 424,032.80

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Solution

The fourth proportional to 437,856.80, 655,402.80 and 424,032.80 is: 634,710.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,856.80 : 655,402.80 = 424,032.80 : x
  2. Step 2: Convert to fraction form
    437,856.80/655,402.80 = 424,032.80/x
  3. Step 3: Cross multiply
    437,856.80x = 655,402.80 × 424,032.80
  4. Step 4: Simplify right side
    437,856.80x = 277,912,284,411.84
  5. Step 5: Solve for x
    x = 277,912,284,411.84/437,856.80
  6. Step 6: Final answer
    x = 634,710.45

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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.