Home / 814,850.25-1,223,080.15-611,740.21

Finding the Fourth Proportional to 814,850.25, 1,223,080.15 and 611,740.21

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Solution

The fourth proportional to 814,850.25, 1,223,080.15 and 611,740.21 is: 918,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,850.25 : 1,223,080.15 = 611,740.21 : x
  2. Step 2: Convert to fraction form
    814,850.25/1,223,080.15 = 611,740.21/x
  3. Step 3: Cross multiply
    814,850.25x = 1,223,080.15 × 611,740.21
  4. Step 4: Simplify right side
    814,850.25x = 748,207,307,807.83
  5. Step 5: Solve for x
    x = 748,207,307,807.83/814,850.25
  6. Step 6: Final answer
    x = 918,214.49

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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.