Home / 870,199.20-1,305,946.80-449,258.40

Finding the Fourth Proportional to 870,199.20, 1,305,946.80 and 449,258.40

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Solution

The fourth proportional to 870,199.20, 1,305,946.80 and 449,258.40 is: 674,222.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,199.20 : 1,305,946.80 = 449,258.40 : x
  2. Step 2: Convert to fraction form
    870,199.20/1,305,946.80 = 449,258.40/x
  3. Step 3: Cross multiply
    870,199.20x = 1,305,946.80 × 449,258.40
  4. Step 4: Simplify right side
    870,199.20x = 586,707,569,853.12
  5. Step 5: Solve for x
    x = 586,707,569,853.12/870,199.20
  6. Step 6: Final answer
    x = 674,222.14

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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.