Home / 1,286,046.64-1,774,581.25-705,116.90

Finding the Fourth Proportional to 1,286,046.64, 1,774,581.25 and 705,116.90

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Solution

The fourth proportional to 1,286,046.64, 1,774,581.25 and 705,116.90 is: 972,971.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,046.64 : 1,774,581.25 = 705,116.90 : x
  2. Step 2: Convert to fraction form
    1,286,046.64/1,774,581.25 = 705,116.90/x
  3. Step 3: Cross multiply
    1,286,046.64x = 1,774,581.25 × 705,116.90
  4. Step 4: Simplify right side
    1,286,046.64x = 1,251,287,233,793.88
  5. Step 5: Solve for x
    x = 1,251,287,233,793.88/1,286,046.64
  6. Step 6: Final answer
    x = 972,971.89

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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.