Home / 905,142.45-1,248,957.85-523,095.51

Finding the Fourth Proportional to 905,142.45, 1,248,957.85 and 523,095.51

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Solution

The fourth proportional to 905,142.45, 1,248,957.85 and 523,095.51 is: 721,791.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,142.45 : 1,248,957.85 = 523,095.51 : x
  2. Step 2: Convert to fraction form
    905,142.45/1,248,957.85 = 523,095.51/x
  3. Step 3: Cross multiply
    905,142.45x = 1,248,957.85 × 523,095.51
  4. Step 4: Simplify right side
    905,142.45x = 653,324,243,514.25
  5. Step 5: Solve for x
    x = 653,324,243,514.25/905,142.45
  6. Step 6: Final answer
    x = 721,791.63

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.