Home / 499,117.06-688,780.02-272,762.56

Finding the Fourth Proportional to 499,117.06, 688,780.02 and 272,762.56

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Solution

The fourth proportional to 499,117.06, 688,780.02 and 272,762.56 is: 376,411.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,117.06 : 688,780.02 = 272,762.56 : x
  2. Step 2: Convert to fraction form
    499,117.06/688,780.02 = 272,762.56/x
  3. Step 3: Cross multiply
    499,117.06x = 688,780.02 × 272,762.56
  4. Step 4: Simplify right side
    499,117.06x = 187,873,401,532.05
  5. Step 5: Solve for x
    x = 187,873,401,532.05/499,117.06
  6. Step 6: Final answer
    x = 376,411.50

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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.