Home / 487,017.39-672,082.04-272,157.40

Finding the Fourth Proportional to 487,017.39, 672,082.04 and 272,157.40

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Solution

The fourth proportional to 487,017.39, 672,082.04 and 272,157.40 is: 375,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,017.39 : 672,082.04 = 272,157.40 : x
  2. Step 2: Convert to fraction form
    487,017.39/672,082.04 = 272,157.40/x
  3. Step 3: Cross multiply
    487,017.39x = 672,082.04 × 272,157.40
  4. Step 4: Simplify right side
    487,017.39x = 182,912,102,113.59
  5. Step 5: Solve for x
    x = 182,912,102,113.59/487,017.39
  6. Step 6: Final answer
    x = 375,576.12

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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.