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Finding the Fourth Proportional to 563,650.75, 777,838.08 and 309,003.76

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Solution

The fourth proportional to 563,650.75, 777,838.08 and 309,003.76 is: 426,425.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,650.75 : 777,838.08 = 309,003.76 : x
  2. Step 2: Convert to fraction form
    563,650.75/777,838.08 = 309,003.76/x
  3. Step 3: Cross multiply
    563,650.75x = 777,838.08 × 309,003.76
  4. Step 4: Simplify right side
    563,650.75x = 240,354,891,391.18
  5. Step 5: Solve for x
    x = 240,354,891,391.18/563,650.75
  6. Step 6: Final answer
    x = 426,425.21

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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.