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Finding the Fourth Proportional to 560,338.56, 773,235.72 and 318,679.92

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Solution

The fourth proportional to 560,338.56, 773,235.72 and 318,679.92 is: 439,760.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,338.56 : 773,235.72 = 318,679.92 : x
  2. Step 2: Convert to fraction form
    560,338.56/773,235.72 = 318,679.92/x
  3. Step 3: Cross multiply
    560,338.56x = 773,235.72 × 318,679.92
  4. Step 4: Simplify right side
    560,338.56x = 246,414,697,390.74
  5. Step 5: Solve for x
    x = 246,414,697,390.74/560,338.56
  6. Step 6: Final answer
    x = 439,760.38

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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.