Home / 1,454,288.80-2,181,542.56-389,307.28

Finding the Fourth Proportional to 1,454,288.80, 2,181,542.56 and 389,307.28

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Solution

The fourth proportional to 1,454,288.80, 2,181,542.56 and 389,307.28 is: 583,990.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,454,288.80 : 2,181,542.56 = 389,307.28 : x
  2. Step 2: Convert to fraction form
    1,454,288.80/2,181,542.56 = 389,307.28/x
  3. Step 3: Cross multiply
    1,454,288.80x = 2,181,542.56 × 389,307.28
  4. Step 4: Simplify right side
    1,454,288.80x = 849,290,400,237.84
  5. Step 5: Solve for x
    x = 849,290,400,237.84/1,454,288.80
  6. Step 6: Final answer
    x = 583,990.20

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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.