Home / 787,907.80-1,181,861.70-472,202.20

Finding the Fourth Proportional to 787,907.80, 1,181,861.70 and 472,202.20

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Solution

The fourth proportional to 787,907.80, 1,181,861.70 and 472,202.20 is: 708,303.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,907.80 : 1,181,861.70 = 472,202.20 : x
  2. Step 2: Convert to fraction form
    787,907.80/1,181,861.70 = 472,202.20/x
  3. Step 3: Cross multiply
    787,907.80x = 1,181,861.70 × 472,202.20
  4. Step 4: Simplify right side
    787,907.80x = 558,077,694,835.74
  5. Step 5: Solve for x
    x = 558,077,694,835.74/787,907.80
  6. Step 6: Final answer
    x = 708,303.30

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Double scale
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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.