Home / 499,219.80-688,922.10-272,866.92

Finding the Fourth Proportional to 499,219.80, 688,922.10 and 272,866.92

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Solution

The fourth proportional to 499,219.80, 688,922.10 and 272,866.92 is: 376,555.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,219.80 : 688,922.10 = 272,866.92 : x
  2. Step 2: Convert to fraction form
    499,219.80/688,922.10 = 272,866.92/x
  3. Step 3: Cross multiply
    499,219.80x = 688,922.10 × 272,866.92
  4. Step 4: Simplify right side
    499,219.80x = 187,984,051,546.93
  5. Step 5: Solve for x
    x = 187,984,051,546.93/499,219.80
  6. Step 6: Final answer
    x = 376,555.68

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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.