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Finding the Fourth Proportional to 610,864.60, 915,713.70 and 475,853.80

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Solution

The fourth proportional to 610,864.60, 915,713.70 and 475,853.80 is: 713,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,864.60 : 915,713.70 = 475,853.80 : x
  2. Step 2: Convert to fraction form
    610,864.60/915,713.70 = 475,853.80/x
  3. Step 3: Cross multiply
    610,864.60x = 915,713.70 × 475,853.80
  4. Step 4: Simplify right side
    610,864.60x = 435,745,843,857.06
  5. Step 5: Solve for x
    x = 435,745,843,857.06/610,864.60
  6. Step 6: Final answer
    x = 713,326.40

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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.