Home / 745,146.50-1,028,436.37-439,205.02

Finding the Fourth Proportional to 745,146.50, 1,028,436.37 and 439,205.02

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Solution

The fourth proportional to 745,146.50, 1,028,436.37 and 439,205.02 is: 606,182.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,146.50 : 1,028,436.37 = 439,205.02 : x
  2. Step 2: Convert to fraction form
    745,146.50/1,028,436.37 = 439,205.02/x
  3. Step 3: Cross multiply
    745,146.50x = 1,028,436.37 × 439,205.02
  4. Step 4: Simplify right side
    745,146.50x = 451,694,416,454.58
  5. Step 5: Solve for x
    x = 451,694,416,454.58/745,146.50
  6. Step 6: Final answer
    x = 606,182.03

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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.