Home / 890,407.28-1,336,049.40-417,010.88

Finding the Fourth Proportional to 890,407.28, 1,336,049.40 and 417,010.88

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Solution

The fourth proportional to 890,407.28, 1,336,049.40 and 417,010.88 is: 625,721.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,407.28 : 1,336,049.40 = 417,010.88 : x
  2. Step 2: Convert to fraction form
    890,407.28/1,336,049.40 = 417,010.88/x
  3. Step 3: Cross multiply
    890,407.28x = 1,336,049.40 × 417,010.88
  4. Step 4: Simplify right side
    890,407.28x = 557,147,136,017.47
  5. Step 5: Solve for x
    x = 557,147,136,017.47/890,407.28
  6. Step 6: Final answer
    x = 625,721.68

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1.5x scale

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.