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Finding the Fourth Proportional to 560,461.37, 773,453.75 and 318,778.74

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Solution

The fourth proportional to 560,461.37, 773,453.75 and 318,778.74 is: 439,924.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,461.37 : 773,453.75 = 318,778.74 : x
  2. Step 2: Convert to fraction form
    560,461.37/773,453.75 = 318,778.74/x
  3. Step 3: Cross multiply
    560,461.37x = 773,453.75 × 318,778.74
  4. Step 4: Simplify right side
    560,461.37x = 246,560,610,279.38
  5. Step 5: Solve for x
    x = 246,560,610,279.38/560,461.37
  6. Step 6: Final answer
    x = 439,924.37

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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.