Home / 809,726.40-1,214,006.40-454,849.20

Finding the Fourth Proportional to 809,726.40, 1,214,006.40 and 454,849.20

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Solution

The fourth proportional to 809,726.40, 1,214,006.40 and 454,849.20 is: 681,946.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,726.40 : 1,214,006.40 = 454,849.20 : x
  2. Step 2: Convert to fraction form
    809,726.40/1,214,006.40 = 454,849.20/x
  3. Step 3: Cross multiply
    809,726.40x = 1,214,006.40 × 454,849.20
  4. Step 4: Simplify right side
    809,726.40x = 552,189,839,834.88
  5. Step 5: Solve for x
    x = 552,189,839,834.88/809,726.40
  6. Step 6: Final answer
    x = 681,946.20

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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.