Home / 920,172.46-1,269,707.33-512,217.66

Finding the Fourth Proportional to 920,172.46, 1,269,707.33 and 512,217.66

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Solution

The fourth proportional to 920,172.46, 1,269,707.33 and 512,217.66 is: 706,787.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,172.46 : 1,269,707.33 = 512,217.66 : x
  2. Step 2: Convert to fraction form
    920,172.46/1,269,707.33 = 512,217.66/x
  3. Step 3: Cross multiply
    920,172.46x = 1,269,707.33 × 512,217.66
  4. Step 4: Simplify right side
    920,172.46x = 650,366,517,457.45
  5. Step 5: Solve for x
    x = 650,366,517,457.45/920,172.46
  6. Step 6: Final answer
    x = 706,787.64

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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.