Home / 487,599.48-672,905.67-272,738.88

Finding the Fourth Proportional to 487,599.48, 672,905.67 and 272,738.88

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Solution

The fourth proportional to 487,599.48, 672,905.67 and 272,738.88 is: 376,389.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,599.48 : 672,905.67 = 272,738.88 : x
  2. Step 2: Convert to fraction form
    487,599.48/672,905.67 = 272,738.88/x
  3. Step 3: Cross multiply
    487,599.48x = 672,905.67 × 272,738.88
  4. Step 4: Simplify right side
    487,599.48x = 183,527,538,781.45
  5. Step 5: Solve for x
    x = 183,527,538,781.45/487,599.48
  6. Step 6: Final answer
    x = 376,389.94

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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.