Home / 487,142.49-672,210.46-272,277.64

Finding the Fourth Proportional to 487,142.49, 672,210.46 and 272,277.64

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Solution

The fourth proportional to 487,142.49, 672,210.46 and 272,277.64 is: 375,717.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,142.49 : 672,210.46 = 272,277.64 : x
  2. Step 2: Convert to fraction form
    487,142.49/672,210.46 = 272,277.64/x
  3. Step 3: Cross multiply
    487,142.49x = 672,210.46 × 272,277.64
  4. Step 4: Simplify right side
    487,142.49x = 183,027,877,632.11
  5. Step 5: Solve for x
    x = 183,027,877,632.11/487,142.49
  6. Step 6: Final answer
    x = 375,717.33

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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.