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Finding the Fourth Proportional to 563,399.28, 777,497.13 and 308,745

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Solution

The fourth proportional to 563,399.28, 777,497.13 and 308,745 is: 426,071.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,399.28 : 777,497.13 = 308,745 : x
  2. Step 2: Convert to fraction form
    563,399.28/777,497.13 = 308,745/x
  3. Step 3: Cross multiply
    563,399.28x = 777,497.13 × 308,745
  4. Step 4: Simplify right side
    563,399.28x = 240,048,351,401.85
  5. Step 5: Solve for x
    x = 240,048,351,401.85/563,399.28
  6. Step 6: Final answer
    x = 426,071.46

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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.