Home / 869,344.77-1,199,581.53-482,155.56

Finding the Fourth Proportional to 869,344.77, 1,199,581.53 and 482,155.56

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Solution

The fourth proportional to 869,344.77, 1,199,581.53 and 482,155.56 is: 665,311.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,344.77 : 1,199,581.53 = 482,155.56 : x
  2. Step 2: Convert to fraction form
    869,344.77/1,199,581.53 = 482,155.56/x
  3. Step 3: Cross multiply
    869,344.77x = 1,199,581.53 × 482,155.56
  4. Step 4: Simplify right side
    869,344.77x = 578,384,904,362.81
  5. Step 5: Solve for x
    x = 578,384,904,362.81/869,344.77
  6. Step 6: Final answer
    x = 665,311.31

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.