Home / 1,207,312.80-1,810,969.20-729,015.90

Finding the Fourth Proportional to 1,207,312.80, 1,810,969.20 and 729,015.90

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Solution

The fourth proportional to 1,207,312.80, 1,810,969.20 and 729,015.90 is: 1,093,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,312.80 : 1,810,969.20 = 729,015.90 : x
  2. Step 2: Convert to fraction form
    1,207,312.80/1,810,969.20 = 729,015.90/x
  3. Step 3: Cross multiply
    1,207,312.80x = 1,810,969.20 × 729,015.90
  4. Step 4: Simplify right side
    1,207,312.80x = 1,320,225,341,210.28
  5. Step 5: Solve for x
    x = 1,320,225,341,210.28/1,207,312.80
  6. Step 6: Final answer
    x = 1,093,523.85

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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.