Home / 578,486.07-868,288.84-279,177.35

Finding the Fourth Proportional to 578,486.07, 868,288.84 and 279,177.35

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Solution

The fourth proportional to 578,486.07, 868,288.84 and 279,177.35 is: 419,036.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,486.07 : 868,288.84 = 279,177.35 : x
  2. Step 2: Convert to fraction form
    578,486.07/868,288.84 = 279,177.35/x
  3. Step 3: Cross multiply
    578,486.07x = 868,288.84 × 279,177.35
  4. Step 4: Simplify right side
    578,486.07x = 242,406,577,385.77
  5. Step 5: Solve for x
    x = 242,406,577,385.77/578,486.07
  6. Step 6: Final answer
    x = 419,036.15

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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.