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Finding the Fourth Proportional to 606,708.60, 910,257.30 and 407,254.20

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Solution

The fourth proportional to 606,708.60, 910,257.30 and 407,254.20 is: 611,011.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,708.60 : 910,257.30 = 407,254.20 : x
  2. Step 2: Convert to fraction form
    606,708.60/910,257.30 = 407,254.20/x
  3. Step 3: Cross multiply
    606,708.60x = 910,257.30 × 407,254.20
  4. Step 4: Simplify right side
    606,708.60x = 370,706,108,505.66
  5. Step 5: Solve for x
    x = 370,706,108,505.66/606,708.60
  6. Step 6: Final answer
    x = 611,011.79

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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.