Home / 499,171.08-688,845.96-272,818.20

Finding the Fourth Proportional to 499,171.08, 688,845.96 and 272,818.20

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Solution

The fourth proportional to 499,171.08, 688,845.96 and 272,818.20 is: 376,483.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,171.08 : 688,845.96 = 272,818.20 : x
  2. Step 2: Convert to fraction form
    499,171.08/688,845.96 = 272,818.20/x
  3. Step 3: Cross multiply
    499,171.08x = 688,845.96 × 272,818.20
  4. Step 4: Simplify right side
    499,171.08x = 187,929,714,884.47
  5. Step 5: Solve for x
    x = 187,929,714,884.47/499,171.08
  6. Step 6: Final answer
    x = 376,483.58

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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.