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Finding the Fourth Proportional to 710,846.28, 980,994.24 and 388,578.24

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Solution

The fourth proportional to 710,846.28, 980,994.24 and 388,578.24 is: 536,252.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,846.28 : 980,994.24 = 388,578.24 : x
  2. Step 2: Convert to fraction form
    710,846.28/980,994.24 = 388,578.24/x
  3. Step 3: Cross multiply
    710,846.28x = 980,994.24 × 388,578.24
  4. Step 4: Simplify right side
    710,846.28x = 381,193,015,229.34
  5. Step 5: Solve for x
    x = 381,193,015,229.34/710,846.28
  6. Step 6: Final answer
    x = 536,252.39

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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.