Home / 866,979.60-1,300,469.40-306,070.80

Finding the Fourth Proportional to 866,979.60, 1,300,469.40 and 306,070.80

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Solution

The fourth proportional to 866,979.60, 1,300,469.40 and 306,070.80 is: 459,106.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,979.60 : 1,300,469.40 = 306,070.80 : x
  2. Step 2: Convert to fraction form
    866,979.60/1,300,469.40 = 306,070.80/x
  3. Step 3: Cross multiply
    866,979.60x = 1,300,469.40 × 306,070.80
  4. Step 4: Simplify right side
    866,979.60x = 398,035,709,633.52
  5. Step 5: Solve for x
    x = 398,035,709,633.52/866,979.60
  6. Step 6: Final answer
    x = 459,106.20

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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.