Home / 1,238,159.61-1,708,031.39-808,691.13

Finding the Fourth Proportional to 1,238,159.61, 1,708,031.39 and 808,691.13

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Solution

The fourth proportional to 1,238,159.61, 1,708,031.39 and 808,691.13 is: 1,115,583.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,159.61 : 1,708,031.39 = 808,691.13 : x
  2. Step 2: Convert to fraction form
    1,238,159.61/1,708,031.39 = 808,691.13/x
  3. Step 3: Cross multiply
    1,238,159.61x = 1,708,031.39 × 808,691.13
  4. Step 4: Simplify right side
    1,238,159.61x = 1,381,269,830,811.12
  5. Step 5: Solve for x
    x = 1,381,269,830,811.12/1,238,159.61
  6. Step 6: Final answer
    x = 1,115,583.02

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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.