Home / 612,612.11-918,975.79-180,329.85

Finding the Fourth Proportional to 612,612.11, 918,975.79 and 180,329.85

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Solution

The fourth proportional to 612,612.11, 918,975.79 and 180,329.85 is: 270,511.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,612.11 : 918,975.79 = 180,329.85 : x
  2. Step 2: Convert to fraction form
    612,612.11/918,975.79 = 180,329.85/x
  3. Step 3: Cross multiply
    612,612.11x = 918,975.79 × 180,329.85
  4. Step 4: Simplify right side
    612,612.11x = 165,718,766,836.81
  5. Step 5: Solve for x
    x = 165,718,766,836.81/612,612.11
  6. Step 6: Final answer
    x = 270,511.74

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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.