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Finding the Fourth Proportional to 532,278.96, 734,516.94 and 290,514.60

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Solution

The fourth proportional to 532,278.96, 734,516.94 and 290,514.60 is: 400,894.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,278.96 : 734,516.94 = 290,514.60 : x
  2. Step 2: Convert to fraction form
    532,278.96/734,516.94 = 290,514.60/x
  3. Step 3: Cross multiply
    532,278.96x = 734,516.94 × 290,514.60
  4. Step 4: Simplify right side
    532,278.96x = 213,387,895,017.32
  5. Step 5: Solve for x
    x = 213,387,895,017.32/532,278.96
  6. Step 6: Final answer
    x = 400,894.85

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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.