Home / 787,293.80-1,180,940.70-314,318.60

Finding the Fourth Proportional to 787,293.80, 1,180,940.70 and 314,318.60

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Solution

The fourth proportional to 787,293.80, 1,180,940.70 and 314,318.60 is: 471,477.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,293.80 : 1,180,940.70 = 314,318.60 : x
  2. Step 2: Convert to fraction form
    787,293.80/1,180,940.70 = 314,318.60/x
  3. Step 3: Cross multiply
    787,293.80x = 1,180,940.70 × 314,318.60
  4. Step 4: Simplify right side
    787,293.80x = 371,191,627,507.02
  5. Step 5: Solve for x
    x = 371,191,627,507.02/787,293.80
  6. Step 6: Final answer
    x = 471,477.90

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Similar ratio
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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.