Home / 870,200.20-1,305,948.30-449,259.40

Finding the Fourth Proportional to 870,200.20, 1,305,948.30 and 449,259.40

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Solution

The fourth proportional to 870,200.20, 1,305,948.30 and 449,259.40 is: 674,223.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,200.20 : 1,305,948.30 = 449,259.40 : x
  2. Step 2: Convert to fraction form
    870,200.20/1,305,948.30 = 449,259.40/x
  3. Step 3: Cross multiply
    870,200.20x = 1,305,948.30 × 449,259.40
  4. Step 4: Simplify right side
    870,200.20x = 586,709,549,689.02
  5. Step 5: Solve for x
    x = 586,709,549,689.02/870,200.20
  6. Step 6: Final answer
    x = 674,223.64

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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.