Home / 907,632.80-1,359,116.40-669,687.20

Finding the Fourth Proportional to 907,632.80, 1,359,116.40 and 669,687.20

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Solution

The fourth proportional to 907,632.80, 1,359,116.40 and 669,687.20 is: 1,002,809.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,632.80 : 1,359,116.40 = 669,687.20 : x
  2. Step 2: Convert to fraction form
    907,632.80/1,359,116.40 = 669,687.20/x
  3. Step 3: Cross multiply
    907,632.80x = 1,359,116.40 × 669,687.20
  4. Step 4: Simplify right side
    907,632.80x = 910,182,856,390.08
  5. Step 5: Solve for x
    x = 910,182,856,390.08/907,632.80
  6. Step 6: Final answer
    x = 1,002,809.57

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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.