Home / 1,049,392.40-1,448,376.60-667,345.28

Finding the Fourth Proportional to 1,049,392.40, 1,448,376.60 and 667,345.28

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Solution

The fourth proportional to 1,049,392.40, 1,448,376.60 and 667,345.28 is: 921,073.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,392.40 : 1,448,376.60 = 667,345.28 : x
  2. Step 2: Convert to fraction form
    1,049,392.40/1,448,376.60 = 667,345.28/x
  3. Step 3: Cross multiply
    1,049,392.40x = 1,448,376.60 × 667,345.28
  4. Step 4: Simplify right side
    1,049,392.40x = 966,567,287,672.45
  5. Step 5: Solve for x
    x = 966,567,287,672.45/1,049,392.40
  6. Step 6: Final answer
    x = 921,073.27

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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.