Home / 487,206.40-672,307.68-296,193.28

Finding the Fourth Proportional to 487,206.40, 672,307.68 and 296,193.28

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Solution

The fourth proportional to 487,206.40, 672,307.68 and 296,193.28 is: 408,724.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,206.40 : 672,307.68 = 296,193.28 : x
  2. Step 2: Convert to fraction form
    487,206.40/672,307.68 = 296,193.28/x
  3. Step 3: Cross multiply
    487,206.40x = 672,307.68 × 296,193.28
  4. Step 4: Simplify right side
    487,206.40x = 199,133,016,908.39
  5. Step 5: Solve for x
    x = 199,133,016,908.39/487,206.40
  6. Step 6: Final answer
    x = 408,724.14

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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.