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Finding the Fourth Proportional to 606,477.70, 908,404.35 and 393,901.30

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Solution

The fourth proportional to 606,477.70, 908,404.35 and 393,901.30 is: 589,999.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,477.70 : 908,404.35 = 393,901.30 : x
  2. Step 2: Convert to fraction form
    606,477.70/908,404.35 = 393,901.30/x
  3. Step 3: Cross multiply
    606,477.70x = 908,404.35 × 393,901.30
  4. Step 4: Simplify right side
    606,477.70x = 357,821,654,390.66
  5. Step 5: Solve for x
    x = 357,821,654,390.66/606,477.70
  6. Step 6: Final answer
    x = 589,999.69

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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.