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Finding the Fourth Proportional to 560,534.34, 773,560.62 and 318,859.50

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Solution

The fourth proportional to 560,534.34, 773,560.62 and 318,859.50 is: 440,039.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,534.34 : 773,560.62 = 318,859.50 : x
  2. Step 2: Convert to fraction form
    560,534.34/773,560.62 = 318,859.50/x
  3. Step 3: Cross multiply
    560,534.34x = 773,560.62 × 318,859.50
  4. Step 4: Simplify right side
    560,534.34x = 246,657,152,512.89
  5. Step 5: Solve for x
    x = 246,657,152,512.89/560,534.34
  6. Step 6: Final answer
    x = 440,039.32

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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.