Home / 1,039,100.78-1,557,441.02-439,862.78

Finding the Fourth Proportional to 1,039,100.78, 1,557,441.02 and 439,862.78

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Solution

The fourth proportional to 1,039,100.78, 1,557,441.02 and 439,862.78 is: 659,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,100.78 : 1,557,441.02 = 439,862.78 : x
  2. Step 2: Convert to fraction form
    1,039,100.78/1,557,441.02 = 439,862.78/x
  3. Step 3: Cross multiply
    1,039,100.78x = 1,557,441.02 × 439,862.78
  4. Step 4: Simplify right side
    1,039,100.78x = 685,060,336,743.24
  5. Step 5: Solve for x
    x = 685,060,336,743.24/1,039,100.78
  6. Step 6: Final answer
    x = 659,281.90

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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.