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Finding the Fourth Proportional to 527,015.70, 790,080.48 and 426,927.78

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Solution

The fourth proportional to 527,015.70, 790,080.48 and 426,927.78 is: 640,032.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,015.70 : 790,080.48 = 426,927.78 : x
  2. Step 2: Convert to fraction form
    527,015.70/790,080.48 = 426,927.78/x
  3. Step 3: Cross multiply
    527,015.70x = 790,080.48 × 426,927.78
  4. Step 4: Simplify right side
    527,015.70x = 337,307,305,347.73
  5. Step 5: Solve for x
    x = 337,307,305,347.73/527,015.70
  6. Step 6: Final answer
    x = 640,032.75

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1.5x scale

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.