Home / 487,218.17-672,363.77-272,367.29

Finding the Fourth Proportional to 487,218.17, 672,363.77 and 272,367.29

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Solution

The fourth proportional to 487,218.17, 672,363.77 and 272,367.29 is: 375,868.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,218.17 : 672,363.77 = 272,367.29 : x
  2. Step 2: Convert to fraction form
    487,218.17/672,363.77 = 272,367.29/x
  3. Step 3: Cross multiply
    487,218.17x = 672,363.77 × 272,367.29
  4. Step 4: Simplify right side
    487,218.17x = 183,129,893,205.43
  5. Step 5: Solve for x
    x = 183,129,893,205.43/487,218.17
  6. Step 6: Final answer
    x = 375,868.36

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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.