Home / 499,173.12-688,848.68-272,820.24

Finding the Fourth Proportional to 499,173.12, 688,848.68 and 272,820.24

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Solution

The fourth proportional to 499,173.12, 688,848.68 and 272,820.24 is: 376,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,173.12 : 688,848.68 = 272,820.24 : x
  2. Step 2: Convert to fraction form
    499,173.12/688,848.68 = 272,820.24/x
  3. Step 3: Cross multiply
    499,173.12x = 688,848.68 × 272,820.24
  4. Step 4: Simplify right side
    499,173.12x = 187,931,862,201.28
  5. Step 5: Solve for x
    x = 187,931,862,201.28/499,173.12
  6. Step 6: Final answer
    x = 376,486.34

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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.