Home / 1,353,139.61-1,867,332.50-809,275.31

Finding the Fourth Proportional to 1,353,139.61, 1,867,332.50 and 809,275.31

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Solution

The fourth proportional to 1,353,139.61, 1,867,332.50 and 809,275.31 is: 1,116,799.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,139.61 : 1,867,332.50 = 809,275.31 : x
  2. Step 2: Convert to fraction form
    1,353,139.61/1,867,332.50 = 809,275.31/x
  3. Step 3: Cross multiply
    1,353,139.61x = 1,867,332.50 × 809,275.31
  4. Step 4: Simplify right side
    1,353,139.61x = 1,511,186,085,165.43
  5. Step 5: Solve for x
    x = 1,511,186,085,165.43/1,353,139.61
  6. Step 6: Final answer
    x = 1,116,799.83

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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.