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Finding the Fourth Proportional to 532,358.53, 734,652.79 and 290,638.33

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Solution

The fourth proportional to 532,358.53, 734,652.79 and 290,638.33 is: 401,079.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,358.53 : 734,652.79 = 290,638.33 : x
  2. Step 2: Convert to fraction form
    532,358.53/734,652.79 = 290,638.33/x
  3. Step 3: Cross multiply
    532,358.53x = 734,652.79 × 290,638.33
  4. Step 4: Simplify right side
    532,358.53x = 213,518,257,452.21
  5. Step 5: Solve for x
    x = 213,518,257,452.21/532,358.53
  6. Step 6: Final answer
    x = 401,079.81

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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.