Home / 519,137.12-778,731.20-253,125.02

Finding the Fourth Proportional to 519,137.12, 778,731.20 and 253,125.02

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Solution

The fourth proportional to 519,137.12, 778,731.20 and 253,125.02 is: 379,699.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,137.12 : 778,731.20 = 253,125.02 : x
  2. Step 2: Convert to fraction form
    519,137.12/778,731.20 = 253,125.02/x
  3. Step 3: Cross multiply
    519,137.12x = 778,731.20 × 253,125.02
  4. Step 4: Simplify right side
    519,137.12x = 197,116,350,574.62
  5. Step 5: Solve for x
    x = 197,116,350,574.62/519,137.12
  6. Step 6: Final answer
    x = 379,699.97

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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.