Home / 498,871.03-688,440.85-272,518.15

Finding the Fourth Proportional to 498,871.03, 688,440.85 and 272,518.15

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Solution

The fourth proportional to 498,871.03, 688,440.85 and 272,518.15 is: 376,074.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,871.03 : 688,440.85 = 272,518.15 : x
  2. Step 2: Convert to fraction form
    498,871.03/688,440.85 = 272,518.15/x
  3. Step 3: Cross multiply
    498,871.03x = 688,440.85 × 272,518.15
  4. Step 4: Simplify right side
    498,871.03x = 187,612,626,826.43
  5. Step 5: Solve for x
    x = 187,612,626,826.43/498,871.03
  6. Step 6: Final answer
    x = 376,074.41

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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.