Home / 487,208.40-672,351.24-272,357.20

Finding the Fourth Proportional to 487,208.40, 672,351.24 and 272,357.20

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Solution

The fourth proportional to 487,208.40, 672,351.24 and 272,357.20 is: 375,854.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,208.40 : 672,351.24 = 272,357.20 : x
  2. Step 2: Convert to fraction form
    487,208.40/672,351.24 = 272,357.20/x
  3. Step 3: Cross multiply
    487,208.40x = 672,351.24 × 272,357.20
  4. Step 4: Simplify right side
    487,208.40x = 183,119,701,142.93
  5. Step 5: Solve for x
    x = 183,119,701,142.93/487,208.40
  6. Step 6: Final answer
    x = 375,854.98

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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.