Home / 686,753.10-1,030,129.65-648,045.90

Finding the Fourth Proportional to 686,753.10, 1,030,129.65 and 648,045.90

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Solution

The fourth proportional to 686,753.10, 1,030,129.65 and 648,045.90 is: 972,068.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    686,753.10 : 1,030,129.65 = 648,045.90 : x
  2. Step 2: Convert to fraction form
    686,753.10/1,030,129.65 = 648,045.90/x
  3. Step 3: Cross multiply
    686,753.10x = 1,030,129.65 × 648,045.90
  4. Step 4: Simplify right side
    686,753.10x = 667,571,296,150.94
  5. Step 5: Solve for x
    x = 667,571,296,150.94/686,753.10
  6. Step 6: Final answer
    x = 972,068.85

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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.