Home / 487,038.59-672,111.29-272,178.60

Finding the Fourth Proportional to 487,038.59, 672,111.29 and 272,178.60

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Solution

The fourth proportional to 487,038.59, 672,111.29 and 272,178.60 is: 375,605.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,038.59 : 672,111.29 = 272,178.60 : x
  2. Step 2: Convert to fraction form
    487,038.59/672,111.29 = 272,178.60/x
  3. Step 3: Cross multiply
    487,038.59x = 672,111.29 × 272,178.60
  4. Step 4: Simplify right side
    487,038.59x = 182,934,310,636.84
  5. Step 5: Solve for x
    x = 182,934,310,636.84/487,038.59
  6. Step 6: Final answer
    x = 375,605.37

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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.