Home / 498,566.83-688,021.95-272,212.33

Finding the Fourth Proportional to 498,566.83, 688,021.95 and 272,212.33

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Solution

The fourth proportional to 498,566.83, 688,021.95 and 272,212.33 is: 375,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,566.83 : 688,021.95 = 272,212.33 : x
  2. Step 2: Convert to fraction form
    498,566.83/688,021.95 = 272,212.33/x
  3. Step 3: Cross multiply
    498,566.83x = 688,021.95 × 272,212.33
  4. Step 4: Simplify right side
    498,566.83x = 187,288,058,100.64
  5. Step 5: Solve for x
    x = 187,288,058,100.64/498,566.83
  6. Step 6: Final answer
    x = 375,652.87

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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.