Home / 539,904.20-745,004.25-298,172.34

Finding the Fourth Proportional to 539,904.20, 745,004.25 and 298,172.34

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Solution

The fourth proportional to 539,904.20, 745,004.25 and 298,172.34 is: 411,442.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,904.20 : 745,004.25 = 298,172.34 : x
  2. Step 2: Convert to fraction form
    539,904.20/745,004.25 = 298,172.34/x
  3. Step 3: Cross multiply
    539,904.20x = 745,004.25 × 298,172.34
  4. Step 4: Simplify right side
    539,904.20x = 222,139,660,532.45
  5. Step 5: Solve for x
    x = 222,139,660,532.45/539,904.20
  6. Step 6: Final answer
    x = 411,442.74

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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.