Home / 744,571.80-1,116,857.88-520,370.10

Finding the Fourth Proportional to 744,571.80, 1,116,857.88 and 520,370.10

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Solution

The fourth proportional to 744,571.80, 1,116,857.88 and 520,370.10 is: 780,555.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,571.80 : 1,116,857.88 = 520,370.10 : x
  2. Step 2: Convert to fraction form
    744,571.80/1,116,857.88 = 520,370.10/x
  3. Step 3: Cross multiply
    744,571.80x = 1,116,857.88 × 520,370.10
  4. Step 4: Simplify right side
    744,571.80x = 581,179,446,701.39
  5. Step 5: Solve for x
    x = 581,179,446,701.39/744,571.80
  6. Step 6: Final answer
    x = 780,555.28

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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.