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Finding the Fourth Proportional to 532,354.38, 734,616 and 290,587.56

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Solution

The fourth proportional to 532,354.38, 734,616 and 290,587.56 is: 400,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,354.38 : 734,616 = 290,587.56 : x
  2. Step 2: Convert to fraction form
    532,354.38/734,616 = 290,587.56/x
  3. Step 3: Cross multiply
    532,354.38x = 734,616 × 290,587.56
  4. Step 4: Simplify right side
    532,354.38x = 213,470,270,976.96
  5. Step 5: Solve for x
    x = 213,470,270,976.96/532,354.38
  6. Step 6: Final answer
    x = 400,992.80

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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.