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Finding the Fourth Proportional to 560,449.72, 773,437.70 and 318,767.12

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Solution

The fourth proportional to 560,449.72, 773,437.70 and 318,767.12 is: 439,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,449.72 : 773,437.70 = 318,767.12 : x
  2. Step 2: Convert to fraction form
    560,449.72/773,437.70 = 318,767.12/x
  3. Step 3: Cross multiply
    560,449.72x = 773,437.70 × 318,767.12
  4. Step 4: Simplify right side
    560,449.72x = 246,546,505,058.15
  5. Step 5: Solve for x
    x = 246,546,505,058.15/560,449.72
  6. Step 6: Final answer
    x = 439,908.34

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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.