Home / 1,386,530.76-2,079,790.56-439,975.29

Finding the Fourth Proportional to 1,386,530.76, 2,079,790.56 and 439,975.29

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Solution

The fourth proportional to 1,386,530.76, 2,079,790.56 and 439,975.29 is: 659,961.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,530.76 : 2,079,790.56 = 439,975.29 : x
  2. Step 2: Convert to fraction form
    1,386,530.76/2,079,790.56 = 439,975.29/x
  3. Step 3: Cross multiply
    1,386,530.76x = 2,079,790.56 × 439,975.29
  4. Step 4: Simplify right side
    1,386,530.76x = 915,056,454,775.26
  5. Step 5: Solve for x
    x = 915,056,454,775.26/1,386,530.76
  6. Step 6: Final answer
    x = 659,961.16

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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.