Home / 875,498.20-1,207,981.74-531,326.50

Finding the Fourth Proportional to 875,498.20, 1,207,981.74 and 531,326.50

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Solution

The fourth proportional to 875,498.20, 1,207,981.74 and 531,326.50 is: 733,105.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,498.20 : 1,207,981.74 = 531,326.50 : x
  2. Step 2: Convert to fraction form
    875,498.20/1,207,981.74 = 531,326.50/x
  3. Step 3: Cross multiply
    875,498.20x = 1,207,981.74 × 531,326.50
  4. Step 4: Simplify right side
    875,498.20x = 641,832,709,978.11
  5. Step 5: Solve for x
    x = 641,832,709,978.11/875,498.20
  6. Step 6: Final answer
    x = 733,105.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.