Home / 920,863.19-1,381,508.47-289,760.60

Finding the Fourth Proportional to 920,863.19, 1,381,508.47 and 289,760.60

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Solution

The fourth proportional to 920,863.19, 1,381,508.47 and 289,760.60 is: 434,708.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,863.19 : 1,381,508.47 = 289,760.60 : x
  2. Step 2: Convert to fraction form
    920,863.19/1,381,508.47 = 289,760.60/x
  3. Step 3: Cross multiply
    920,863.19x = 1,381,508.47 × 289,760.60
  4. Step 4: Simplify right side
    920,863.19x = 400,306,723,172.28
  5. Step 5: Solve for x
    x = 400,306,723,172.28/920,863.19
  6. Step 6: Final answer
    x = 434,708.14

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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.