Home / 1,549,322.40-2,138,007.84-861,037.20

Finding the Fourth Proportional to 1,549,322.40, 2,138,007.84 and 861,037.20

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Solution

The fourth proportional to 1,549,322.40, 2,138,007.84 and 861,037.20 is: 1,188,199.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,549,322.40 : 2,138,007.84 = 861,037.20 : x
  2. Step 2: Convert to fraction form
    1,549,322.40/2,138,007.84 = 861,037.20/x
  3. Step 3: Cross multiply
    1,549,322.40x = 2,138,007.84 × 861,037.20
  4. Step 4: Simplify right side
    1,549,322.40x = 1,840,904,284,131.65
  5. Step 5: Solve for x
    x = 1,840,904,284,131.65/1,549,322.40
  6. Step 6: Final answer
    x = 1,188,199.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.