Home / 643,102.52-965,064.18-453,445.88

Finding the Fourth Proportional to 643,102.52, 965,064.18 and 453,445.88

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Solution

The fourth proportional to 643,102.52, 965,064.18 and 453,445.88 is: 680,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,102.52 : 965,064.18 = 453,445.88 : x
  2. Step 2: Convert to fraction form
    643,102.52/965,064.18 = 453,445.88/x
  3. Step 3: Cross multiply
    643,102.52x = 965,064.18 × 453,445.88
  4. Step 4: Simplify right side
    643,102.52x = 437,604,376,356.58
  5. Step 5: Solve for x
    x = 437,604,376,356.58/643,102.52
  6. Step 6: Final answer
    x = 680,458.19

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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.