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Finding the Fourth Proportional to 610,397.78, 915,727.88 and 255,228.98

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Solution

The fourth proportional to 610,397.78, 915,727.88 and 255,228.98 is: 382,898.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,397.78 : 915,727.88 = 255,228.98 : x
  2. Step 2: Convert to fraction form
    610,397.78/915,727.88 = 255,228.98/x
  3. Step 3: Cross multiply
    610,397.78x = 915,727.88 × 255,228.98
  4. Step 4: Simplify right side
    610,397.78x = 233,720,288,829.40
  5. Step 5: Solve for x
    x = 233,720,288,829.40/610,397.78
  6. Step 6: Final answer
    x = 382,898.33

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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.