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Finding the Fourth Proportional to 407,173.65, 610,959.21 and 287,996.34

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Solution

The fourth proportional to 407,173.65, 610,959.21 and 287,996.34 is: 432,135.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,173.65 : 610,959.21 = 287,996.34 : x
  2. Step 2: Convert to fraction form
    407,173.65/610,959.21 = 287,996.34/x
  3. Step 3: Cross multiply
    407,173.65x = 610,959.21 × 287,996.34
  4. Step 4: Simplify right side
    407,173.65x = 175,954,016,369.29
  5. Step 5: Solve for x
    x = 175,954,016,369.29/407,173.65
  6. Step 6: Final answer
    x = 432,135.08

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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.