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Finding the Fourth Proportional to 706,562.43, 975,035.30 and 400,666.65

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Solution

The fourth proportional to 706,562.43, 975,035.30 and 400,666.65 is: 552,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,562.43 : 975,035.30 = 400,666.65 : x
  2. Step 2: Convert to fraction form
    706,562.43/975,035.30 = 400,666.65/x
  3. Step 3: Cross multiply
    706,562.43x = 975,035.30 × 400,666.65
  4. Step 4: Simplify right side
    706,562.43x = 390,664,125,279.41
  5. Step 5: Solve for x
    x = 390,664,125,279.41/706,562.43
  6. Step 6: Final answer
    x = 552,908.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.