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Finding the Fourth Proportional to 717,989.22, 990,993.97 and 446,262.33

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Solution

The fourth proportional to 717,989.22, 990,993.97 and 446,262.33 is: 615,946.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,989.22 : 990,993.97 = 446,262.33 : x
  2. Step 2: Convert to fraction form
    717,989.22/990,993.97 = 446,262.33/x
  3. Step 3: Cross multiply
    717,989.22x = 990,993.97 × 446,262.33
  4. Step 4: Simplify right side
    717,989.22x = 442,243,282,342.21
  5. Step 5: Solve for x
    x = 442,243,282,342.21/717,989.22
  6. Step 6: Final answer
    x = 615,946.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.