Home / 712,469.19-983,188.44-406,540.02

Finding the Fourth Proportional to 712,469.19, 983,188.44 and 406,540.02

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Solution

The fourth proportional to 712,469.19, 983,188.44 and 406,540.02 is: 561,014.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,469.19 : 983,188.44 = 406,540.02 : x
  2. Step 2: Convert to fraction form
    712,469.19/983,188.44 = 406,540.02/x
  3. Step 3: Cross multiply
    712,469.19x = 983,188.44 × 406,540.02
  4. Step 4: Simplify right side
    712,469.19x = 399,705,443,145.43
  5. Step 5: Solve for x
    x = 399,705,443,145.43/712,469.19
  6. Step 6: Final answer
    x = 561,014.35

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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.