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Finding the Fourth Proportional to 552,369.32, 762,262.40 and 310,651.80

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Solution

The fourth proportional to 552,369.32, 762,262.40 and 310,651.80 is: 428,695.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,369.32 : 762,262.40 = 310,651.80 : x
  2. Step 2: Convert to fraction form
    552,369.32/762,262.40 = 310,651.80/x
  3. Step 3: Cross multiply
    552,369.32x = 762,262.40 × 310,651.80
  4. Step 4: Simplify right side
    552,369.32x = 236,798,186,632.32
  5. Step 5: Solve for x
    x = 236,798,186,632.32/552,369.32
  6. Step 6: Final answer
    x = 428,695.40

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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.