Home / 691,647.40-1,037,471.10-424,541.80

Finding the Fourth Proportional to 691,647.40, 1,037,471.10 and 424,541.80

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Solution

The fourth proportional to 691,647.40, 1,037,471.10 and 424,541.80 is: 636,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,647.40 : 1,037,471.10 = 424,541.80 : x
  2. Step 2: Convert to fraction form
    691,647.40/1,037,471.10 = 424,541.80/x
  3. Step 3: Cross multiply
    691,647.40x = 1,037,471.10 × 424,541.80
  4. Step 4: Simplify right side
    691,647.40x = 440,449,848,241.98
  5. Step 5: Solve for x
    x = 440,449,848,241.98/691,647.40
  6. Step 6: Final answer
    x = 636,812.70

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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.