Home / 1,350,406.40-2,025,285.60-780,555.20

Finding the Fourth Proportional to 1,350,406.40, 2,025,285.60 and 780,555.20

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Solution

The fourth proportional to 1,350,406.40, 2,025,285.60 and 780,555.20 is: 1,170,645.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350,406.40 : 2,025,285.60 = 780,555.20 : x
  2. Step 2: Convert to fraction form
    1,350,406.40/2,025,285.60 = 780,555.20/x
  3. Step 3: Cross multiply
    1,350,406.40x = 2,025,285.60 × 780,555.20
  4. Step 4: Simplify right side
    1,350,406.40x = 1,580,847,206,565.12
  5. Step 5: Solve for x
    x = 1,580,847,206,565.12/1,350,406.40
  6. Step 6: Final answer
    x = 1,170,645.52

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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.