Home / 499,126.80-688,795.36-272,772.32

Finding the Fourth Proportional to 499,126.80, 688,795.36 and 272,772.32

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Solution

The fourth proportional to 499,126.80, 688,795.36 and 272,772.32 is: 376,426.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,126.80 : 688,795.36 = 272,772.32 : x
  2. Step 2: Convert to fraction form
    499,126.80/688,795.36 = 272,772.32/x
  3. Step 3: Cross multiply
    499,126.80x = 688,795.36 × 272,772.32
  4. Step 4: Simplify right side
    499,126.80x = 187,884,308,352.44
  5. Step 5: Solve for x
    x = 187,884,308,352.44/499,126.80
  6. Step 6: Final answer
    x = 376,426.01

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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.