Home / 699,495.80-1,049,502.90-279,073.40

Finding the Fourth Proportional to 699,495.80, 1,049,502.90 and 279,073.40

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Solution

The fourth proportional to 699,495.80, 1,049,502.90 and 279,073.40 is: 418,713.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,495.80 : 1,049,502.90 = 279,073.40 : x
  2. Step 2: Convert to fraction form
    699,495.80/1,049,502.90 = 279,073.40/x
  3. Step 3: Cross multiply
    699,495.80x = 1,049,502.90 × 279,073.40
  4. Step 4: Simplify right side
    699,495.80x = 292,888,342,612.86
  5. Step 5: Solve for x
    x = 292,888,342,612.86/699,495.80
  6. Step 6: Final answer
    x = 418,713.51

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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.