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Finding the Fourth Proportional to 556,471.76, 834,839.21 and 443,048.45

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Solution

The fourth proportional to 556,471.76, 834,839.21 and 443,048.45 is: 664,677.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,471.76 : 834,839.21 = 443,048.45 : x
  2. Step 2: Convert to fraction form
    556,471.76/834,839.21 = 443,048.45/x
  3. Step 3: Cross multiply
    556,471.76x = 834,839.21 × 443,048.45
  4. Step 4: Simplify right side
    556,471.76x = 369,874,214,923.15
  5. Step 5: Solve for x
    x = 369,874,214,923.15/556,471.76
  6. Step 6: Final answer
    x = 664,677.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.