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Finding the Fourth Proportional to 646,871.70, 970,480.35 and 577,233.30

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Solution

The fourth proportional to 646,871.70, 970,480.35 and 577,233.30 is: 866,004.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,871.70 : 970,480.35 = 577,233.30 : x
  2. Step 2: Convert to fraction form
    646,871.70/970,480.35 = 577,233.30/x
  3. Step 3: Cross multiply
    646,871.70x = 970,480.35 × 577,233.30
  4. Step 4: Simplify right side
    646,871.70x = 560,193,575,015.66
  5. Step 5: Solve for x
    x = 560,193,575,015.66/646,871.70
  6. Step 6: Final answer
    x = 866,004.15

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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.