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Finding the Fourth Proportional to 610,318.20, 915,623.10 and 294,515.40

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Solution

The fourth proportional to 610,318.20, 915,623.10 and 294,515.40 is: 441,843.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,318.20 : 915,623.10 = 294,515.40 : x
  2. Step 2: Convert to fraction form
    610,318.20/915,623.10 = 294,515.40/x
  3. Step 3: Cross multiply
    610,318.20x = 915,623.10 × 294,515.40
  4. Step 4: Simplify right side
    610,318.20x = 269,665,103,545.74
  5. Step 5: Solve for x
    x = 269,665,103,545.74/610,318.20
  6. Step 6: Final answer
    x = 441,843.46

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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.