Home / 578,851.20-868,276.80-204,825.60

Finding the Fourth Proportional to 578,851.20, 868,276.80 and 204,825.60

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Solution

The fourth proportional to 578,851.20, 868,276.80 and 204,825.60 is: 307,238.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,851.20 : 868,276.80 = 204,825.60 : x
  2. Step 2: Convert to fraction form
    578,851.20/868,276.80 = 204,825.60/x
  3. Step 3: Cross multiply
    578,851.20x = 868,276.80 × 204,825.60
  4. Step 4: Simplify right side
    578,851.20x = 177,845,316,526.08
  5. Step 5: Solve for x
    x = 177,845,316,526.08/578,851.20
  6. Step 6: Final answer
    x = 307,238.40

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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.