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Finding the Fourth Proportional to 560,378.88, 773,291.34 and 318,720.24

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Solution

The fourth proportional to 560,378.88, 773,291.34 and 318,720.24 is: 439,816.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,378.88 : 773,291.34 = 318,720.24 : x
  2. Step 2: Convert to fraction form
    560,378.88/773,291.34 = 318,720.24/x
  3. Step 3: Cross multiply
    560,378.88x = 773,291.34 × 318,720.24
  4. Step 4: Simplify right side
    560,378.88x = 246,463,601,474.72
  5. Step 5: Solve for x
    x = 246,463,601,474.72/560,378.88
  6. Step 6: Final answer
    x = 439,816.01

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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.