Home / 1,520,200.20-2,278,796.30-720,075.40

Finding the Fourth Proportional to 1,520,200.20, 2,278,796.30 and 720,075.40

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Solution

The fourth proportional to 1,520,200.20, 2,278,796.30 and 720,075.40 is: 1,079,400.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520,200.20 : 2,278,796.30 = 720,075.40 : x
  2. Step 2: Convert to fraction form
    1,520,200.20/2,278,796.30 = 720,075.40/x
  3. Step 3: Cross multiply
    1,520,200.20x = 2,278,796.30 × 720,075.40
  4. Step 4: Simplify right side
    1,520,200.20x = 1,640,905,157,241.02
  5. Step 5: Solve for x
    x = 1,640,905,157,241.02/1,520,200.20
  6. Step 6: Final answer
    x = 1,079,400.70

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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.