Home / 1,143,721.60-1,715,582.40-789,827.20

Finding the Fourth Proportional to 1,143,721.60, 1,715,582.40 and 789,827.20

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Solution

The fourth proportional to 1,143,721.60, 1,715,582.40 and 789,827.20 is: 1,184,740.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,721.60 : 1,715,582.40 = 789,827.20 : x
  2. Step 2: Convert to fraction form
    1,143,721.60/1,715,582.40 = 789,827.20/x
  3. Step 3: Cross multiply
    1,143,721.60x = 1,715,582.40 × 789,827.20
  4. Step 4: Simplify right side
    1,143,721.60x = 1,355,013,643,361.28
  5. Step 5: Solve for x
    x = 1,355,013,643,361.28/1,143,721.60
  6. Step 6: Final answer
    x = 1,184,740.80

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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.