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Finding the Fourth Proportional to 560,829.82, 773,915.82 and 306,131.80

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Solution

The fourth proportional to 560,829.82, 773,915.82 and 306,131.80 is: 422,445.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,829.82 : 773,915.82 = 306,131.80 : x
  2. Step 2: Convert to fraction form
    560,829.82/773,915.82 = 306,131.80/x
  3. Step 3: Cross multiply
    560,829.82x = 773,915.82 × 306,131.80
  4. Step 4: Simplify right side
    560,829.82x = 236,920,243,025.08
  5. Step 5: Solve for x
    x = 236,920,243,025.08/560,829.82
  6. Step 6: Final answer
    x = 422,445.87

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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.