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Finding the Fourth Proportional to 606,164.40, 911,214.90 and 429,892.20

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Solution

The fourth proportional to 606,164.40, 911,214.90 and 429,892.20 is: 646,234.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,164.40 : 911,214.90 = 429,892.20 : x
  2. Step 2: Convert to fraction form
    606,164.40/911,214.90 = 429,892.20/x
  3. Step 3: Cross multiply
    606,164.40x = 911,214.90 × 429,892.20
  4. Step 4: Simplify right side
    606,164.40x = 391,724,178,033.78
  5. Step 5: Solve for x
    x = 391,724,178,033.78/606,164.40
  6. Step 6: Final answer
    x = 646,234.22

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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.