Home / 863,670.30-1,295,505.45-781,001.70

Finding the Fourth Proportional to 863,670.30, 1,295,505.45 and 781,001.70

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Solution

The fourth proportional to 863,670.30, 1,295,505.45 and 781,001.70 is: 1,171,502.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,670.30 : 1,295,505.45 = 781,001.70 : x
  2. Step 2: Convert to fraction form
    863,670.30/1,295,505.45 = 781,001.70/x
  3. Step 3: Cross multiply
    863,670.30x = 1,295,505.45 × 781,001.70
  4. Step 4: Simplify right side
    863,670.30x = 1,011,791,958,809.26
  5. Step 5: Solve for x
    x = 1,011,791,958,809.26/863,670.30
  6. Step 6: Final answer
    x = 1,171,502.55

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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.