Home / 917,577.76-1,376,380.51-318,557.95

Finding the Fourth Proportional to 917,577.76, 1,376,380.51 and 318,557.95

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Solution

The fourth proportional to 917,577.76, 1,376,380.51 and 318,557.95 is: 477,841.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,577.76 : 1,376,380.51 = 318,557.95 : x
  2. Step 2: Convert to fraction form
    917,577.76/1,376,380.51 = 318,557.95/x
  3. Step 3: Cross multiply
    917,577.76x = 1,376,380.51 × 318,557.95
  4. Step 4: Simplify right side
    917,577.76x = 438,456,956,330.11
  5. Step 5: Solve for x
    x = 438,456,956,330.11/917,577.76
  6. Step 6: Final answer
    x = 477,841.74

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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.