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Finding the Fourth Proportional to 606,819.30, 910,812.15 and 307,637.70

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Solution

The fourth proportional to 606,819.30, 910,812.15 and 307,637.70 is: 461,752.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,819.30 : 910,812.15 = 307,637.70 : x
  2. Step 2: Convert to fraction form
    606,819.30/910,812.15 = 307,637.70/x
  3. Step 3: Cross multiply
    606,819.30x = 910,812.15 × 307,637.70
  4. Step 4: Simplify right side
    606,819.30x = 280,200,154,958.06
  5. Step 5: Solve for x
    x = 280,200,154,958.06/606,819.30
  6. Step 6: Final answer
    x = 461,752.21

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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.