Home / 715,004.90-986,466.62-404,865.21

Finding the Fourth Proportional to 715,004.90, 986,466.62 and 404,865.21

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Solution

The fourth proportional to 715,004.90, 986,466.62 and 404,865.21 is: 558,578.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,004.90 : 986,466.62 = 404,865.21 : x
  2. Step 2: Convert to fraction form
    715,004.90/986,466.62 = 404,865.21/x
  3. Step 3: Cross multiply
    715,004.90x = 986,466.62 × 404,865.21
  4. Step 4: Simplify right side
    715,004.90x = 399,386,016,276.45
  5. Step 5: Solve for x
    x = 399,386,016,276.45/715,004.90
  6. Step 6: Final answer
    x = 558,578.02

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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.