Home / 1,386,368.80-2,079,536.68-439,747.72

Finding the Fourth Proportional to 1,386,368.80, 2,079,536.68 and 439,747.72

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Solution

The fourth proportional to 1,386,368.80, 2,079,536.68 and 439,747.72 is: 659,616.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,368.80 : 2,079,536.68 = 439,747.72 : x
  2. Step 2: Convert to fraction form
    1,386,368.80/2,079,536.68 = 439,747.72/x
  3. Step 3: Cross multiply
    1,386,368.80x = 2,079,536.68 × 439,747.72
  4. Step 4: Simplify right side
    1,386,368.80x = 914,471,513,686.37
  5. Step 5: Solve for x
    x = 914,471,513,686.37/1,386,368.80
  6. Step 6: Final answer
    x = 659,616.34

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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.