Home / 558,663.28-837,678.75-511,054.72

Finding the Fourth Proportional to 558,663.28, 837,678.75 and 511,054.72

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Solution

The fourth proportional to 558,663.28, 837,678.75 and 511,054.72 is: 766,292.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,663.28 : 837,678.75 = 511,054.72 : x
  2. Step 2: Convert to fraction form
    558,663.28/837,678.75 = 511,054.72/x
  3. Step 3: Cross multiply
    558,663.28x = 837,678.75 × 511,054.72
  4. Step 4: Simplify right side
    558,663.28x = 428,099,679,031.20
  5. Step 5: Solve for x
    x = 428,099,679,031.20/558,663.28
  6. Step 6: Final answer
    x = 766,292.85

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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.