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Finding the Fourth Proportional to 610,646.72, 915,972.44 and 255,411.54

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Solution

The fourth proportional to 610,646.72, 915,972.44 and 255,411.54 is: 383,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,646.72 : 915,972.44 = 255,411.54 : x
  2. Step 2: Convert to fraction form
    610,646.72/915,972.44 = 255,411.54/x
  3. Step 3: Cross multiply
    610,646.72x = 915,972.44 × 255,411.54
  4. Step 4: Simplify right side
    610,646.72x = 233,949,930,220.90
  5. Step 5: Solve for x
    x = 233,949,930,220.90/610,646.72
  6. Step 6: Final answer
    x = 383,118.30

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1.5x scale

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.