Home / 1,261,814.10-1,741,329.81-688,878.42

Finding the Fourth Proportional to 1,261,814.10, 1,741,329.81 and 688,878.42

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Solution

The fourth proportional to 1,261,814.10, 1,741,329.81 and 688,878.42 is: 950,666.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,814.10 : 1,741,329.81 = 688,878.42 : x
  2. Step 2: Convert to fraction form
    1,261,814.10/1,741,329.81 = 688,878.42/x
  3. Step 3: Cross multiply
    1,261,814.10x = 1,741,329.81 × 688,878.42
  4. Step 4: Simplify right side
    1,261,814.10x = 1,199,564,528,211.70
  5. Step 5: Solve for x
    x = 1,199,564,528,211.70/1,261,814.10
  6. Step 6: Final answer
    x = 950,666.61

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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.