Home / 875,105.20-1,312,657.80-514,906.30

Finding the Fourth Proportional to 875,105.20, 1,312,657.80 and 514,906.30

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Solution

The fourth proportional to 875,105.20, 1,312,657.80 and 514,906.30 is: 772,359.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,105.20 : 1,312,657.80 = 514,906.30 : x
  2. Step 2: Convert to fraction form
    875,105.20/1,312,657.80 = 514,906.30/x
  3. Step 3: Cross multiply
    875,105.20x = 1,312,657.80 × 514,906.30
  4. Step 4: Simplify right side
    875,105.20x = 675,895,770,964.14
  5. Step 5: Solve for x
    x = 675,895,770,964.14/875,105.20
  6. Step 6: Final answer
    x = 772,359.45

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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.