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Finding the Fourth Proportional to 498,562.83, 688,016.43 and 272,208.33

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Solution

The fourth proportional to 498,562.83, 688,016.43 and 272,208.33 is: 375,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,562.83 : 688,016.43 = 272,208.33 : x
  2. Step 2: Convert to fraction form
    498,562.83/688,016.43 = 272,208.33/x
  3. Step 3: Cross multiply
    498,562.83x = 688,016.43 × 272,208.33
  4. Step 4: Simplify right side
    498,562.83x = 187,283,803,422.86
  5. Step 5: Solve for x
    x = 187,283,803,422.86/498,562.83
  6. Step 6: Final answer
    x = 375,647.35

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1.5x scale

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.