Home / 729,856.20-1,094,784.30-688,521.90

Finding the Fourth Proportional to 729,856.20, 1,094,784.30 and 688,521.90

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Solution

The fourth proportional to 729,856.20, 1,094,784.30 and 688,521.90 is: 1,032,782.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,856.20 : 1,094,784.30 = 688,521.90 : x
  2. Step 2: Convert to fraction form
    729,856.20/1,094,784.30 = 688,521.90/x
  3. Step 3: Cross multiply
    729,856.20x = 1,094,784.30 × 688,521.90
  4. Step 4: Simplify right side
    729,856.20x = 753,782,966,326.17
  5. Step 5: Solve for x
    x = 753,782,966,326.17/729,856.20
  6. Step 6: Final answer
    x = 1,032,782.85

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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.