Home / 787,135.80-1,180,412.10-254,674.20

Finding the Fourth Proportional to 787,135.80, 1,180,412.10 and 254,674.20

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Solution

The fourth proportional to 787,135.80, 1,180,412.10 and 254,674.20 is: 381,916.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,135.80 : 1,180,412.10 = 254,674.20 : x
  2. Step 2: Convert to fraction form
    787,135.80/1,180,412.10 = 254,674.20/x
  3. Step 3: Cross multiply
    787,135.80x = 1,180,412.10 × 254,674.20
  4. Step 4: Simplify right side
    787,135.80x = 300,620,507,237.82
  5. Step 5: Solve for x
    x = 300,620,507,237.82/787,135.80
  6. Step 6: Final answer
    x = 381,916.95

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Double scale
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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.