Home / 1,585,280.80-2,379,476.40-787,463.20

Finding the Fourth Proportional to 1,585,280.80, 2,379,476.40 and 787,463.20

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Solution

The fourth proportional to 1,585,280.80, 2,379,476.40 and 787,463.20 is: 1,181,967.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,280.80 : 2,379,476.40 = 787,463.20 : x
  2. Step 2: Convert to fraction form
    1,585,280.80/2,379,476.40 = 787,463.20/x
  3. Step 3: Cross multiply
    1,585,280.80x = 2,379,476.40 × 787,463.20
  4. Step 4: Simplify right side
    1,585,280.80x = 1,873,750,100,268.48
  5. Step 5: Solve for x
    x = 1,873,750,100,268.48/1,585,280.80
  6. Step 6: Final answer
    x = 1,181,967.32

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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.