Home / 487,600.19-672,172.14-341,964.45

Finding the Fourth Proportional to 487,600.19, 672,172.14 and 341,964.45

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Solution

The fourth proportional to 487,600.19, 672,172.14 and 341,964.45 is: 471,408.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,600.19 : 672,172.14 = 341,964.45 : x
  2. Step 2: Convert to fraction form
    487,600.19/672,172.14 = 341,964.45/x
  3. Step 3: Cross multiply
    487,600.19x = 672,172.14 × 341,964.45
  4. Step 4: Simplify right side
    487,600.19x = 229,858,974,486.84
  5. Step 5: Solve for x
    x = 229,858,974,486.84/487,600.19
  6. Step 6: Final answer
    x = 471,408.70

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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.