Home / 499,009.50-688,650.12-272,669.58

Finding the Fourth Proportional to 499,009.50, 688,650.12 and 272,669.58

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Solution

The fourth proportional to 499,009.50, 688,650.12 and 272,669.58 is: 376,293.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,009.50 : 688,650.12 = 272,669.58 : x
  2. Step 2: Convert to fraction form
    499,009.50/688,650.12 = 272,669.58/x
  3. Step 3: Cross multiply
    499,009.50x = 688,650.12 × 272,669.58
  4. Step 4: Simplify right side
    499,009.50x = 187,773,938,987.35
  5. Step 5: Solve for x
    x = 187,773,938,987.35/499,009.50
  6. Step 6: Final answer
    x = 376,293.32

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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.