Home / 487,178.60-672,307.25-272,318.45

Finding the Fourth Proportional to 487,178.60, 672,307.25 and 272,318.45

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Solution

The fourth proportional to 487,178.60, 672,307.25 and 272,318.45 is: 375,799.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,178.60 : 672,307.25 = 272,318.45 : x
  2. Step 2: Convert to fraction form
    487,178.60/672,307.25 = 272,318.45/x
  3. Step 3: Cross multiply
    487,178.60x = 672,307.25 × 272,318.45
  4. Step 4: Simplify right side
    487,178.60x = 183,081,663,520.63
  5. Step 5: Solve for x
    x = 183,081,663,520.63/487,178.60
  6. Step 6: Final answer
    x = 375,799.89

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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.