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Finding the Fourth Proportional to 706,537.31, 975,000.60 and 400,641.62

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Solution

The fourth proportional to 706,537.31, 975,000.60 and 400,641.62 is: 552,873.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    706,537.31 : 975,000.60 = 400,641.62 : x
  2. Step 2: Convert to fraction form
    706,537.31/975,000.60 = 400,641.62/x
  3. Step 3: Cross multiply
    706,537.31x = 975,000.60 × 400,641.62
  4. Step 4: Simplify right side
    706,537.31x = 390,625,815,009.97
  5. Step 5: Solve for x
    x = 390,625,815,009.97/706,537.31
  6. Step 6: Final answer
    x = 552,873.59

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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.