Home / 769,512.80-1,154,269.20-208,547.30

Finding the Fourth Proportional to 769,512.80, 1,154,269.20 and 208,547.30

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Solution

The fourth proportional to 769,512.80, 1,154,269.20 and 208,547.30 is: 312,820.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,512.80 : 1,154,269.20 = 208,547.30 : x
  2. Step 2: Convert to fraction form
    769,512.80/1,154,269.20 = 208,547.30/x
  3. Step 3: Cross multiply
    769,512.80x = 1,154,269.20 × 208,547.30
  4. Step 4: Simplify right side
    769,512.80x = 240,719,725,133.16
  5. Step 5: Solve for x
    x = 240,719,725,133.16/769,512.80
  6. Step 6: Final answer
    x = 312,820.95

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Similar ratio
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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.