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Finding the Fourth Proportional to 317,788.80, 476,799.96 and 299,009.76

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Solution

The fourth proportional to 317,788.80, 476,799.96 and 299,009.76 is: 448,624.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,788.80 : 476,799.96 = 299,009.76 : x
  2. Step 2: Convert to fraction form
    317,788.80/476,799.96 = 299,009.76/x
  3. Step 3: Cross multiply
    317,788.80x = 476,799.96 × 299,009.76
  4. Step 4: Simplify right side
    317,788.80x = 142,567,841,607.61
  5. Step 5: Solve for x
    x = 142,567,841,607.61/317,788.80
  6. Step 6: Final answer
    x = 448,624.50

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1.5x scale

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.