Home / 787,132.80-1,181,282.40-314,157.60

Finding the Fourth Proportional to 787,132.80, 1,181,282.40 and 314,157.60

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Solution

The fourth proportional to 787,132.80, 1,181,282.40 and 314,157.60 is: 471,469.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,132.80 : 1,181,282.40 = 314,157.60 : x
  2. Step 2: Convert to fraction form
    787,132.80/1,181,282.40 = 314,157.60/x
  3. Step 3: Cross multiply
    787,132.80x = 1,181,282.40 × 314,157.60
  4. Step 4: Simplify right side
    787,132.80x = 371,108,843,706.24
  5. Step 5: Solve for x
    x = 371,108,843,706.24/787,132.80
  6. Step 6: Final answer
    x = 471,469.16

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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.