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Finding the Fourth Proportional to 560,485.36, 773,493.04 and 318,810.48

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Solution

The fourth proportional to 560,485.36, 773,493.04 and 318,810.48 is: 439,971.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,485.36 : 773,493.04 = 318,810.48 : x
  2. Step 2: Convert to fraction form
    560,485.36/773,493.04 = 318,810.48/x
  3. Step 3: Cross multiply
    560,485.36x = 773,493.04 × 318,810.48
  4. Step 4: Simplify right side
    560,485.36x = 246,597,687,359.06
  5. Step 5: Solve for x
    x = 246,597,687,359.06/560,485.36
  6. Step 6: Final answer
    x = 439,971.68

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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.