Home / 890,399.78-1,336,038.15-417,003.38

Finding the Fourth Proportional to 890,399.78, 1,336,038.15 and 417,003.38

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Solution

The fourth proportional to 890,399.78, 1,336,038.15 and 417,003.38 is: 625,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,399.78 : 1,336,038.15 = 417,003.38 : x
  2. Step 2: Convert to fraction form
    890,399.78/1,336,038.15 = 417,003.38/x
  3. Step 3: Cross multiply
    890,399.78x = 1,336,038.15 × 417,003.38
  4. Step 4: Simplify right side
    890,399.78x = 557,132,424,358.95
  5. Step 5: Solve for x
    x = 557,132,424,358.95/890,399.78
  6. Step 6: Final answer
    x = 625,710.42

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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.