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Finding the Fourth Proportional to 606,966.60, 910,449.90 and 207,620.40

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Solution

The fourth proportional to 606,966.60, 910,449.90 and 207,620.40 is: 311,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,966.60 : 910,449.90 = 207,620.40 : x
  2. Step 2: Convert to fraction form
    606,966.60/910,449.90 = 207,620.40/x
  3. Step 3: Cross multiply
    606,966.60x = 910,449.90 × 207,620.40
  4. Step 4: Simplify right side
    606,966.60x = 189,027,972,417.96
  5. Step 5: Solve for x
    x = 189,027,972,417.96/606,966.60
  6. Step 6: Final answer
    x = 311,430.60

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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.