Home / 756,075.20-1,134,112.80-437,210.60

Finding the Fourth Proportional to 756,075.20, 1,134,112.80 and 437,210.60

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Solution

The fourth proportional to 756,075.20, 1,134,112.80 and 437,210.60 is: 655,815.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,075.20 : 1,134,112.80 = 437,210.60 : x
  2. Step 2: Convert to fraction form
    756,075.20/1,134,112.80 = 437,210.60/x
  3. Step 3: Cross multiply
    756,075.20x = 1,134,112.80 × 437,210.60
  4. Step 4: Simplify right side
    756,075.20x = 495,846,137,755.68
  5. Step 5: Solve for x
    x = 495,846,137,755.68/756,075.20
  6. Step 6: Final answer
    x = 655,815.90

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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.