Home / 913,982.10-1,371,104.37-314,782.98

Finding the Fourth Proportional to 913,982.10, 1,371,104.37 and 314,782.98

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Solution

The fourth proportional to 913,982.10, 1,371,104.37 and 314,782.98 is: 472,219.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    913,982.10 : 1,371,104.37 = 314,782.98 : x
  2. Step 2: Convert to fraction form
    913,982.10/1,371,104.37 = 314,782.98/x
  3. Step 3: Cross multiply
    913,982.10x = 1,371,104.37 × 314,782.98
  4. Step 4: Simplify right side
    913,982.10x = 431,600,319,479.62
  5. Step 5: Solve for x
    x = 431,600,319,479.62/913,982.10
  6. Step 6: Final answer
    x = 472,219.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.