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Finding the Fourth Proportional to 554,929.40, 832,394.10 and 318,077.30

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Solution

The fourth proportional to 554,929.40, 832,394.10 and 318,077.30 is: 477,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,929.40 : 832,394.10 = 318,077.30 : x
  2. Step 2: Convert to fraction form
    554,929.40/832,394.10 = 318,077.30/x
  3. Step 3: Cross multiply
    554,929.40x = 832,394.10 × 318,077.30
  4. Step 4: Simplify right side
    554,929.40x = 264,765,667,863.93
  5. Step 5: Solve for x
    x = 264,765,667,863.93/554,929.40
  6. Step 6: Final answer
    x = 477,115.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.