Home / 503,346.90-694,718.19-288,632.10

Finding the Fourth Proportional to 503,346.90, 694,718.19 and 288,632.10

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Solution

The fourth proportional to 503,346.90, 694,718.19 and 288,632.10 is: 398,369.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,346.90 : 694,718.19 = 288,632.10 : x
  2. Step 2: Convert to fraction form
    503,346.90/694,718.19 = 288,632.10/x
  3. Step 3: Cross multiply
    503,346.90x = 694,718.19 × 288,632.10
  4. Step 4: Simplify right side
    503,346.90x = 200,517,970,087.90
  5. Step 5: Solve for x
    x = 200,517,970,087.90/503,346.90
  6. Step 6: Final answer
    x = 398,369.34

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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.