Home / 1,238,201.52-1,857,302.28-817,378.80

Finding the Fourth Proportional to 1,238,201.52, 1,857,302.28 and 817,378.80

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Solution

The fourth proportional to 1,238,201.52, 1,857,302.28 and 817,378.80 is: 1,226,068.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,201.52 : 1,857,302.28 = 817,378.80 : x
  2. Step 2: Convert to fraction form
    1,238,201.52/1,857,302.28 = 817,378.80/x
  3. Step 3: Cross multiply
    1,238,201.52x = 1,857,302.28 × 817,378.80
  4. Step 4: Simplify right side
    1,238,201.52x = 1,518,119,508,863.66
  5. Step 5: Solve for x
    x = 1,518,119,508,863.66/1,238,201.52
  6. Step 6: Final answer
    x = 1,226,068.20

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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.