Home / 558,040.32-768,798.72-385,793.28

Finding the Fourth Proportional to 558,040.32, 768,798.72 and 385,793.28

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Solution

The fourth proportional to 558,040.32, 768,798.72 and 385,793.28 is: 531,498.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,040.32 : 768,798.72 = 385,793.28 : x
  2. Step 2: Convert to fraction form
    558,040.32/768,798.72 = 385,793.28/x
  3. Step 3: Cross multiply
    558,040.32x = 768,798.72 × 385,793.28
  4. Step 4: Simplify right side
    558,040.32x = 296,597,379,848.60
  5. Step 5: Solve for x
    x = 296,597,379,848.60/558,040.32
  6. Step 6: Final answer
    x = 531,498.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.