Home / 1,287,503.64-1,776,719.21-706,726.35

Finding the Fourth Proportional to 1,287,503.64, 1,776,719.21 and 706,726.35

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Solution

The fourth proportional to 1,287,503.64, 1,776,719.21 and 706,726.35 is: 975,262.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,503.64 : 1,776,719.21 = 706,726.35 : x
  2. Step 2: Convert to fraction form
    1,287,503.64/1,776,719.21 = 706,726.35/x
  3. Step 3: Cross multiply
    1,287,503.64x = 1,776,719.21 × 706,726.35
  4. Step 4: Simplify right side
    1,287,503.64x = 1,255,654,278,724.55
  5. Step 5: Solve for x
    x = 1,255,654,278,724.55/1,287,503.64
  6. Step 6: Final answer
    x = 975,262.70

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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.