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Finding the Fourth Proportional to 560,921.66, 773,679.12 and 379,553.76

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Solution

The fourth proportional to 560,921.66, 773,679.12 and 379,553.76 is: 523,518.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,921.66 : 773,679.12 = 379,553.76 : x
  2. Step 2: Convert to fraction form
    560,921.66/773,679.12 = 379,553.76/x
  3. Step 3: Cross multiply
    560,921.66x = 773,679.12 × 379,553.76
  4. Step 4: Simplify right side
    560,921.66x = 293,652,819,029.49
  5. Step 5: Solve for x
    x = 293,652,819,029.49/560,921.66
  6. Step 6: Final answer
    x = 523,518.42

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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.