Home / 977,192.80-1,465,789.20-879,215.20

Finding the Fourth Proportional to 977,192.80, 1,465,789.20 and 879,215.20

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Solution

The fourth proportional to 977,192.80, 1,465,789.20 and 879,215.20 is: 1,318,822.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,192.80 : 1,465,789.20 = 879,215.20 : x
  2. Step 2: Convert to fraction form
    977,192.80/1,465,789.20 = 879,215.20/x
  3. Step 3: Cross multiply
    977,192.80x = 1,465,789.20 × 879,215.20
  4. Step 4: Simplify right side
    977,192.80x = 1,288,744,144,635.84
  5. Step 5: Solve for x
    x = 1,288,744,144,635.84/977,192.80
  6. Step 6: Final answer
    x = 1,318,822.80

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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.