Home / 407,181.36-610,772.04-126,642.72

Finding the Fourth Proportional to 407,181.36, 610,772.04 and 126,642.72

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Solution

The fourth proportional to 407,181.36, 610,772.04 and 126,642.72 is: 189,964.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,181.36 : 610,772.04 = 126,642.72 : x
  2. Step 2: Convert to fraction form
    407,181.36/610,772.04 = 126,642.72/x
  3. Step 3: Cross multiply
    407,181.36x = 610,772.04 × 126,642.72
  4. Step 4: Simplify right side
    407,181.36x = 77,349,832,445.55
  5. Step 5: Solve for x
    x = 77,349,832,445.55/407,181.36
  6. Step 6: Final answer
    x = 189,964.08

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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.