Home / 1,448,337.20-2,172,505.80-912,959.60

Finding the Fourth Proportional to 1,448,337.20, 2,172,505.80 and 912,959.60

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Solution

The fourth proportional to 1,448,337.20, 2,172,505.80 and 912,959.60 is: 1,369,439.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,448,337.20 : 2,172,505.80 = 912,959.60 : x
  2. Step 2: Convert to fraction form
    1,448,337.20/2,172,505.80 = 912,959.60/x
  3. Step 3: Cross multiply
    1,448,337.20x = 2,172,505.80 × 912,959.60
  4. Step 4: Simplify right side
    1,448,337.20x = 1,983,410,026,165.68
  5. Step 5: Solve for x
    x = 1,983,410,026,165.68/1,448,337.20
  6. Step 6: Final answer
    x = 1,369,439.40

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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.