Home / 487,275.48-672,454.98-272,424.60

Finding the Fourth Proportional to 487,275.48, 672,454.98 and 272,424.60

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Solution

The fourth proportional to 487,275.48, 672,454.98 and 272,424.60 is: 375,954.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,275.48 : 672,454.98 = 272,424.60 : x
  2. Step 2: Convert to fraction form
    487,275.48/672,454.98 = 272,424.60/x
  3. Step 3: Cross multiply
    487,275.48x = 672,454.98 × 272,424.60
  4. Step 4: Simplify right side
    487,275.48x = 183,193,278,944.51
  5. Step 5: Solve for x
    x = 183,193,278,944.51/487,275.48
  6. Step 6: Final answer
    x = 375,954.23

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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.