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Finding the Fourth Proportional to 633,279.84, 873,919.64 and 342,886.42

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Solution

The fourth proportional to 633,279.84, 873,919.64 and 342,886.42 is: 473,179.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,279.84 : 873,919.64 = 342,886.42 : x
  2. Step 2: Convert to fraction form
    633,279.84/873,919.64 = 342,886.42/x
  3. Step 3: Cross multiply
    633,279.84x = 873,919.64 × 342,886.42
  4. Step 4: Simplify right side
    633,279.84x = 299,655,176,727.29
  5. Step 5: Solve for x
    x = 299,655,176,727.29/633,279.84
  6. Step 6: Final answer
    x = 473,179.72

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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.