Home / 770,562.28-1,155,843.42-209,599.72

Finding the Fourth Proportional to 770,562.28, 1,155,843.42 and 209,599.72

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Solution

The fourth proportional to 770,562.28, 1,155,843.42 and 209,599.72 is: 314,399.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,562.28 : 1,155,843.42 = 209,599.72 : x
  2. Step 2: Convert to fraction form
    770,562.28/1,155,843.42 = 209,599.72/x
  3. Step 3: Cross multiply
    770,562.28x = 1,155,843.42 × 209,599.72
  4. Step 4: Simplify right side
    770,562.28x = 242,264,457,195.84
  5. Step 5: Solve for x
    x = 242,264,457,195.84/770,562.28
  6. Step 6: Final answer
    x = 314,399.58

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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.