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Finding the Fourth Proportional to 552,289.50, 762,154.74 and 310,566.93

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Solution

The fourth proportional to 552,289.50, 762,154.74 and 310,566.93 is: 428,579.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,289.50 : 762,154.74 = 310,566.93 : x
  2. Step 2: Convert to fraction form
    552,289.50/762,154.74 = 310,566.93/x
  3. Step 3: Cross multiply
    552,289.50x = 762,154.74 × 310,566.93
  4. Step 4: Simplify right side
    552,289.50x = 236,700,057,786.75
  5. Step 5: Solve for x
    x = 236,700,057,786.75/552,289.50
  6. Step 6: Final answer
    x = 428,579.68

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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.