Home / 715,076.72-986,698.92-409,104.50

Finding the Fourth Proportional to 715,076.72, 986,698.92 and 409,104.50

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Solution

The fourth proportional to 715,076.72, 986,698.92 and 409,104.50 is: 564,503.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,076.72 : 986,698.92 = 409,104.50 : x
  2. Step 2: Convert to fraction form
    715,076.72/986,698.92 = 409,104.50/x
  3. Step 3: Cross multiply
    715,076.72x = 986,698.92 × 409,104.50
  4. Step 4: Simplify right side
    715,076.72x = 403,662,968,317.14
  5. Step 5: Solve for x
    x = 403,662,968,317.14/715,076.72
  6. Step 6: Final answer
    x = 564,503.02

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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.