Home / 831,034.32-1,245,567.12-381,376.16

Finding the Fourth Proportional to 831,034.32, 1,245,567.12 and 381,376.16

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Solution

The fourth proportional to 831,034.32, 1,245,567.12 and 381,376.16 is: 571,612.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,034.32 : 1,245,567.12 = 381,376.16 : x
  2. Step 2: Convert to fraction form
    831,034.32/1,245,567.12 = 381,376.16/x
  3. Step 3: Cross multiply
    831,034.32x = 1,245,567.12 × 381,376.16
  4. Step 4: Simplify right side
    831,034.32x = 475,029,605,247.86
  5. Step 5: Solve for x
    x = 475,029,605,247.86/831,034.32
  6. Step 6: Final answer
    x = 571,612.50

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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.