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Finding the Fourth Proportional to 673,987.36, 930,102.72 and 372,181.12

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Solution

The fourth proportional to 673,987.36, 930,102.72 and 372,181.12 is: 513,610.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,987.36 : 930,102.72 = 372,181.12 : x
  2. Step 2: Convert to fraction form
    673,987.36/930,102.72 = 372,181.12/x
  3. Step 3: Cross multiply
    673,987.36x = 930,102.72 × 372,181.12
  4. Step 4: Simplify right side
    673,987.36x = 346,166,672,044.65
  5. Step 5: Solve for x
    x = 346,166,672,044.65/673,987.36
  6. Step 6: Final answer
    x = 513,610.04

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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.