Home / 1,123,664.82-1,683,722.10-912,269.40

Finding the Fourth Proportional to 1,123,664.82, 1,683,722.10 and 912,269.40

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Solution

The fourth proportional to 1,123,664.82, 1,683,722.10 and 912,269.40 is: 1,366,962.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,664.82 : 1,683,722.10 = 912,269.40 : x
  2. Step 2: Convert to fraction form
    1,123,664.82/1,683,722.10 = 912,269.40/x
  3. Step 3: Cross multiply
    1,123,664.82x = 1,683,722.10 × 912,269.40
  4. Step 4: Simplify right side
    1,123,664.82x = 1,536,008,149,933.74
  5. Step 5: Solve for x
    x = 1,536,008,149,933.74/1,123,664.82
  6. Step 6: Final answer
    x = 1,366,962.93

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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.