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Finding the Fourth Proportional to 966,651.20, 1,450,495.20 and 405,742.40

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Solution

The fourth proportional to 966,651.20, 1,450,495.20 and 405,742.40 is: 608,831.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,651.20 : 1,450,495.20 = 405,742.40 : x
  2. Step 2: Convert to fraction form
    966,651.20/1,450,495.20 = 405,742.40/x
  3. Step 3: Cross multiply
    966,651.20x = 1,450,495.20 × 405,742.40
  4. Step 4: Simplify right side
    966,651.20x = 588,527,403,636.48
  5. Step 5: Solve for x
    x = 588,527,403,636.48/966,651.20
  6. Step 6: Final answer
    x = 608,831.19

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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.