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Finding the Fourth Proportional to 660,104.51, 910,651.14 and 430,608.96

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Solution

The fourth proportional to 660,104.51, 910,651.14 and 430,608.96 is: 594,049.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,104.51 : 910,651.14 = 430,608.96 : x
  2. Step 2: Convert to fraction form
    660,104.51/910,651.14 = 430,608.96/x
  3. Step 3: Cross multiply
    660,104.51x = 910,651.14 × 430,608.96
  4. Step 4: Simplify right side
    660,104.51x = 392,134,540,318.21
  5. Step 5: Solve for x
    x = 392,134,540,318.21/660,104.51
  6. Step 6: Final answer
    x = 594,049.18

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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.