Home / 980,726.40-1,471,089.60-349,660.80

Finding the Fourth Proportional to 980,726.40, 1,471,089.60 and 349,660.80

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Solution

The fourth proportional to 980,726.40, 1,471,089.60 and 349,660.80 is: 524,491.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,726.40 : 1,471,089.60 = 349,660.80 : x
  2. Step 2: Convert to fraction form
    980,726.40/1,471,089.60 = 349,660.80/x
  3. Step 3: Cross multiply
    980,726.40x = 1,471,089.60 × 349,660.80
  4. Step 4: Simplify right side
    980,726.40x = 514,382,366,407.68
  5. Step 5: Solve for x
    x = 514,382,366,407.68/980,726.40
  6. Step 6: Final answer
    x = 524,491.20

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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.