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Finding the Fourth Proportional to 606,470.02, 908,967.08 and 429,028.18

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Solution

The fourth proportional to 606,470.02, 908,967.08 and 429,028.18 is: 643,020.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,470.02 : 908,967.08 = 429,028.18 : x
  2. Step 2: Convert to fraction form
    606,470.02/908,967.08 = 429,028.18/x
  3. Step 3: Cross multiply
    606,470.02x = 908,967.08 × 429,028.18
  4. Step 4: Simplify right side
    606,470.02x = 389,972,490,812.47
  5. Step 5: Solve for x
    x = 389,972,490,812.47/606,470.02
  6. Step 6: Final answer
    x = 643,020.23

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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.