Home / 803,210.18-1,205,397.92-647,320.82

Finding the Fourth Proportional to 803,210.18, 1,205,397.92 and 647,320.82

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Solution

The fourth proportional to 803,210.18, 1,205,397.92 and 647,320.82 is: 971,450.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,210.18 : 1,205,397.92 = 647,320.82 : x
  2. Step 2: Convert to fraction form
    803,210.18/1,205,397.92 = 647,320.82/x
  3. Step 3: Cross multiply
    803,210.18x = 1,205,397.92 × 647,320.82
  4. Step 4: Simplify right side
    803,210.18x = 780,279,165,592.01
  5. Step 5: Solve for x
    x = 780,279,165,592.01/803,210.18
  6. Step 6: Final answer
    x = 971,450.80

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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.