Home / 785,126.40-1,083,494.40-483,379.20

Finding the Fourth Proportional to 785,126.40, 1,083,494.40 and 483,379.20

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Solution

The fourth proportional to 785,126.40, 1,083,494.40 and 483,379.20 is: 667,075.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,126.40 : 1,083,494.40 = 483,379.20 : x
  2. Step 2: Convert to fraction form
    785,126.40/1,083,494.40 = 483,379.20/x
  3. Step 3: Cross multiply
    785,126.40x = 1,083,494.40 × 483,379.20
  4. Step 4: Simplify right side
    785,126.40x = 523,738,656,276.48
  5. Step 5: Solve for x
    x = 523,738,656,276.48/785,126.40
  6. Step 6: Final answer
    x = 667,075.59

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.