Home / 805,124.20-1,207,685.52-206,084.40

Finding the Fourth Proportional to 805,124.20, 1,207,685.52 and 206,084.40

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Solution

The fourth proportional to 805,124.20, 1,207,685.52 and 206,084.40 is: 309,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,124.20 : 1,207,685.52 = 206,084.40 : x
  2. Step 2: Convert to fraction form
    805,124.20/1,207,685.52 = 206,084.40/x
  3. Step 3: Cross multiply
    805,124.20x = 1,207,685.52 × 206,084.40
  4. Step 4: Simplify right side
    805,124.20x = 248,885,145,777.89
  5. Step 5: Solve for x
    x = 248,885,145,777.89/805,124.20
  6. Step 6: Final answer
    x = 309,126.40

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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.