Home / 648,887.31-971,414.10-479,281.41

Finding the Fourth Proportional to 648,887.31, 971,414.10 and 479,281.41

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Solution

The fourth proportional to 648,887.31, 971,414.10 and 479,281.41 is: 717,506.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,887.31 : 971,414.10 = 479,281.41 : x
  2. Step 2: Convert to fraction form
    648,887.31/971,414.10 = 479,281.41/x
  3. Step 3: Cross multiply
    648,887.31x = 971,414.10 × 479,281.41
  4. Step 4: Simplify right side
    648,887.31x = 465,580,719,541.88
  5. Step 5: Solve for x
    x = 465,580,719,541.88/648,887.31
  6. Step 6: Final answer
    x = 717,506.28

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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.