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Finding the Fourth Proportional to 552,804.76, 762,909.30 and 311,110.60

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Solution

The fourth proportional to 552,804.76, 762,909.30 and 311,110.60 is: 429,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,804.76 : 762,909.30 = 311,110.60 : x
  2. Step 2: Convert to fraction form
    552,804.76/762,909.30 = 311,110.60/x
  3. Step 3: Cross multiply
    552,804.76x = 762,909.30 × 311,110.60
  4. Step 4: Simplify right side
    552,804.76x = 237,349,170,068.58
  5. Step 5: Solve for x
    x = 237,349,170,068.58/552,804.76
  6. Step 6: Final answer
    x = 429,354.43

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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.