Home / 499,275.42-688,999.14-272,920.92

Finding the Fourth Proportional to 499,275.42, 688,999.14 and 272,920.92

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Solution

The fourth proportional to 499,275.42, 688,999.14 and 272,920.92 is: 376,630.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,275.42 : 688,999.14 = 272,920.92 : x
  2. Step 2: Convert to fraction form
    499,275.42/688,999.14 = 272,920.92/x
  3. Step 3: Cross multiply
    499,275.42x = 688,999.14 × 272,920.92
  4. Step 4: Simplify right side
    499,275.42x = 188,042,279,168.01
  5. Step 5: Solve for x
    x = 188,042,279,168.01/499,275.42
  6. Step 6: Final answer
    x = 376,630.36

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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.