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Finding the Fourth Proportional to 565,560.52, 780,473.52 and 310,911.73

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Solution

The fourth proportional to 565,560.52, 780,473.52 and 310,911.73 is: 429,058.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    565,560.52 : 780,473.52 = 310,911.73 : x
  2. Step 2: Convert to fraction form
    565,560.52/780,473.52 = 310,911.73/x
  3. Step 3: Cross multiply
    565,560.52x = 780,473.52 × 310,911.73
  4. Step 4: Simplify right side
    565,560.52x = 242,658,372,322.39
  5. Step 5: Solve for x
    x = 242,658,372,322.39/565,560.52
  6. Step 6: Final answer
    x = 429,058.19

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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.