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Finding the Fourth Proportional to 660,481.46, 911,486.96 and 370,105.28

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Solution

The fourth proportional to 660,481.46, 911,486.96 and 370,105.28 is: 510,757.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,481.46 : 911,486.96 = 370,105.28 : x
  2. Step 2: Convert to fraction form
    660,481.46/911,486.96 = 370,105.28/x
  3. Step 3: Cross multiply
    660,481.46x = 911,486.96 × 370,105.28
  4. Step 4: Simplify right side
    660,481.46x = 337,346,136,547.15
  5. Step 5: Solve for x
    x = 337,346,136,547.15/660,481.46
  6. Step 6: Final answer
    x = 510,757.92

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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.