Home / 1,049,390.40-1,448,373.84-667,343.28

Finding the Fourth Proportional to 1,049,390.40, 1,448,373.84 and 667,343.28

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Solution

The fourth proportional to 1,049,390.40, 1,448,373.84 and 667,343.28 is: 921,070.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,049,390.40 : 1,448,373.84 = 667,343.28 : x
  2. Step 2: Convert to fraction form
    1,049,390.40/1,448,373.84 = 667,343.28/x
  3. Step 3: Cross multiply
    1,049,390.40x = 1,448,373.84 × 667,343.28
  4. Step 4: Simplify right side
    1,049,390.40x = 966,562,549,051.80
  5. Step 5: Solve for x
    x = 966,562,549,051.80/1,049,390.40
  6. Step 6: Final answer
    x = 921,070.51

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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.