Home / 977,174.40-1,465,761.60-641,251.20

Finding the Fourth Proportional to 977,174.40, 1,465,761.60 and 641,251.20

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Solution

The fourth proportional to 977,174.40, 1,465,761.60 and 641,251.20 is: 961,876.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,174.40 : 1,465,761.60 = 641,251.20 : x
  2. Step 2: Convert to fraction form
    977,174.40/1,465,761.60 = 641,251.20/x
  3. Step 3: Cross multiply
    977,174.40x = 1,465,761.60 × 641,251.20
  4. Step 4: Simplify right side
    977,174.40x = 939,921,384,913.92
  5. Step 5: Solve for x
    x = 939,921,384,913.92/977,174.40
  6. Step 6: Final answer
    x = 961,876.80

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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.