Home / 787,221.80-1,181,415.90-314,246.60

Finding the Fourth Proportional to 787,221.80, 1,181,415.90 and 314,246.60

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Solution

The fourth proportional to 787,221.80, 1,181,415.90 and 314,246.60 is: 471,602.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,221.80 : 1,181,415.90 = 314,246.60 : x
  2. Step 2: Convert to fraction form
    787,221.80/1,181,415.90 = 314,246.60/x
  3. Step 3: Cross multiply
    787,221.80x = 1,181,415.90 × 314,246.60
  4. Step 4: Simplify right side
    787,221.80x = 371,255,929,760.94
  5. Step 5: Solve for x
    x = 371,255,929,760.94/787,221.80
  6. Step 6: Final answer
    x = 471,602.70

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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.