Home / 487,439.08-672,638.02-269,634.76

Finding the Fourth Proportional to 487,439.08, 672,638.02 and 269,634.76

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Solution

The fourth proportional to 487,439.08, 672,638.02 and 269,634.76 is: 372,080.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,439.08 : 672,638.02 = 269,634.76 : x
  2. Step 2: Convert to fraction form
    487,439.08/672,638.02 = 269,634.76/x
  3. Step 3: Cross multiply
    487,439.08x = 672,638.02 × 269,634.76
  4. Step 4: Simplify right side
    487,439.08x = 181,366,591,089.58
  5. Step 5: Solve for x
    x = 181,366,591,089.58/487,439.08
  6. Step 6: Final answer
    x = 372,080.53

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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.