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Finding the Fourth Proportional to 578,279.84, 798,030.24 and 323,654.72

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Solution

The fourth proportional to 578,279.84, 798,030.24 and 323,654.72 is: 446,645.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,279.84 : 798,030.24 = 323,654.72 : x
  2. Step 2: Convert to fraction form
    578,279.84/798,030.24 = 323,654.72/x
  3. Step 3: Cross multiply
    578,279.84x = 798,030.24 × 323,654.72
  4. Step 4: Simplify right side
    578,279.84x = 258,286,253,878.73
  5. Step 5: Solve for x
    x = 258,286,253,878.73/578,279.84
  6. Step 6: Final answer
    x = 446,645.79

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1.5x scale

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.