Home / 578,052.30-867,078.45-519,149.10

Finding the Fourth Proportional to 578,052.30, 867,078.45 and 519,149.10

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Solution

The fourth proportional to 578,052.30, 867,078.45 and 519,149.10 is: 778,723.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,052.30 : 867,078.45 = 519,149.10 : x
  2. Step 2: Convert to fraction form
    578,052.30/867,078.45 = 519,149.10/x
  3. Step 3: Cross multiply
    578,052.30x = 867,078.45 × 519,149.10
  4. Step 4: Simplify right side
    578,052.30x = 450,142,996,946.90
  5. Step 5: Solve for x
    x = 450,142,996,946.90/578,052.30
  6. Step 6: Final answer
    x = 778,723.65

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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.