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Finding the Fourth Proportional to 552,426.87, 762,341.55 and 310,709.34

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Solution

The fourth proportional to 552,426.87, 762,341.55 and 310,709.34 is: 428,774.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,426.87 : 762,341.55 = 310,709.34 : x
  2. Step 2: Convert to fraction form
    552,426.87/762,341.55 = 310,709.34/x
  3. Step 3: Cross multiply
    552,426.87x = 762,341.55 × 310,709.34
  4. Step 4: Simplify right side
    552,426.87x = 236,866,639,855.08
  5. Step 5: Solve for x
    x = 236,866,639,855.08/552,426.87
  6. Step 6: Final answer
    x = 428,774.65

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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.