Home / 497,490.57-686,324.22-325,109.36

Finding the Fourth Proportional to 497,490.57, 686,324.22 and 325,109.36

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Solution

The fourth proportional to 497,490.57, 686,324.22 and 325,109.36 is: 448,511.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,490.57 : 686,324.22 = 325,109.36 : x
  2. Step 2: Convert to fraction form
    497,490.57/686,324.22 = 325,109.36/x
  3. Step 3: Cross multiply
    497,490.57x = 686,324.22 × 325,109.36
  4. Step 4: Simplify right side
    497,490.57x = 223,130,428,413.35
  5. Step 5: Solve for x
    x = 223,130,428,413.35/497,490.57
  6. Step 6: Final answer
    x = 448,511.88

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1.5x scale

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.