Home / 717,988.79-990,993.37-446,261.90

Finding the Fourth Proportional to 717,988.79, 990,993.37 and 446,261.90

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Solution

The fourth proportional to 717,988.79, 990,993.37 and 446,261.90 is: 615,946.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,988.79 : 990,993.37 = 446,261.90 : x
  2. Step 2: Convert to fraction form
    717,988.79/990,993.37 = 446,261.90/x
  3. Step 3: Cross multiply
    717,988.79x = 990,993.37 × 446,261.90
  4. Step 4: Simplify right side
    717,988.79x = 442,242,584,183.60
  5. Step 5: Solve for x
    x = 442,242,584,183.60/717,988.79
  6. Step 6: Final answer
    x = 615,946.36

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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.