Home / 1,023,979.32-1,535,849.04-643,777.58

Finding the Fourth Proportional to 1,023,979.32, 1,535,849.04 and 643,777.58

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Solution

The fourth proportional to 1,023,979.32, 1,535,849.04 and 643,777.58 is: 965,590.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,023,979.32 : 1,535,849.04 = 643,777.58 : x
  2. Step 2: Convert to fraction form
    1,023,979.32/1,535,849.04 = 643,777.58/x
  3. Step 3: Cross multiply
    1,023,979.32x = 1,535,849.04 × 643,777.58
  4. Step 4: Simplify right side
    1,023,979.32x = 988,745,178,216.52
  5. Step 5: Solve for x
    x = 988,745,178,216.52/1,023,979.32
  6. Step 6: Final answer
    x = 965,590.96

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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.