Home / 1,270,221.70-1,904,931.17-417,152.78

Finding the Fourth Proportional to 1,270,221.70, 1,904,931.17 and 417,152.78

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Solution

The fourth proportional to 1,270,221.70, 1,904,931.17 and 417,152.78 is: 625,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,221.70 : 1,904,931.17 = 417,152.78 : x
  2. Step 2: Convert to fraction form
    1,270,221.70/1,904,931.17 = 417,152.78/x
  3. Step 3: Cross multiply
    1,270,221.70x = 1,904,931.17 × 417,152.78
  4. Step 4: Simplify right side
    1,270,221.70x = 794,647,335,950.72
  5. Step 5: Solve for x
    x = 794,647,335,950.72/1,270,221.70
  6. Step 6: Final answer
    x = 625,597.36

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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.