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Finding the Fourth Proportional to 606,022.70, 910,018.20 and 407,224.40

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Solution

The fourth proportional to 606,022.70, 910,018.20 and 407,224.40 is: 611,497.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,022.70 : 910,018.20 = 407,224.40 : x
  2. Step 2: Convert to fraction form
    606,022.70/910,018.20 = 407,224.40/x
  3. Step 3: Cross multiply
    606,022.70x = 910,018.20 × 407,224.40
  4. Step 4: Simplify right side
    606,022.70x = 370,581,615,484.08
  5. Step 5: Solve for x
    x = 370,581,615,484.08/606,022.70
  6. Step 6: Final answer
    x = 611,497.91

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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.