Home / 787,671.20-1,181,069.40-313,821.20

Finding the Fourth Proportional to 787,671.20, 1,181,069.40 and 313,821.20

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Solution

The fourth proportional to 787,671.20, 1,181,069.40 and 313,821.20 is: 470,557.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,671.20 : 1,181,069.40 = 313,821.20 : x
  2. Step 2: Convert to fraction form
    787,671.20/1,181,069.40 = 313,821.20/x
  3. Step 3: Cross multiply
    787,671.20x = 1,181,069.40 × 313,821.20
  4. Step 4: Simplify right side
    787,671.20x = 370,644,616,391.28
  5. Step 5: Solve for x
    x = 370,644,616,391.28/787,671.20
  6. Step 6: Final answer
    x = 470,557.53

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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.