Home / 707,756.20-1,059,042.30-521,132.20

Finding the Fourth Proportional to 707,756.20, 1,059,042.30 and 521,132.20

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Solution

The fourth proportional to 707,756.20, 1,059,042.30 and 521,132.20 is: 779,789.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,756.20 : 1,059,042.30 = 521,132.20 : x
  2. Step 2: Convert to fraction form
    707,756.20/1,059,042.30 = 521,132.20/x
  3. Step 3: Cross multiply
    707,756.20x = 1,059,042.30 × 521,132.20
  4. Step 4: Simplify right side
    707,756.20x = 551,901,043,692.06
  5. Step 5: Solve for x
    x = 551,901,043,692.06/707,756.20
  6. Step 6: Final answer
    x = 779,789.77

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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.