Home / 578,999.30-869,276.55-369,565.70

Finding the Fourth Proportional to 578,999.30, 869,276.55 and 369,565.70

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Solution

The fourth proportional to 578,999.30, 869,276.55 and 369,565.70 is: 554,844.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,999.30 : 869,276.55 = 369,565.70 : x
  2. Step 2: Convert to fraction form
    578,999.30/869,276.55 = 369,565.70/x
  3. Step 3: Cross multiply
    578,999.30x = 869,276.55 × 369,565.70
  4. Step 4: Simplify right side
    578,999.30x = 321,254,796,694.34
  5. Step 5: Solve for x
    x = 321,254,796,694.34/578,999.30
  6. Step 6: Final answer
    x = 554,844.88

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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.