Home / 855,611.70-1,283,417.55-814,139.70

Finding the Fourth Proportional to 855,611.70, 1,283,417.55 and 814,139.70

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Solution

The fourth proportional to 855,611.70, 1,283,417.55 and 814,139.70 is: 1,221,209.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,611.70 : 1,283,417.55 = 814,139.70 : x
  2. Step 2: Convert to fraction form
    855,611.70/1,283,417.55 = 814,139.70/x
  3. Step 3: Cross multiply
    855,611.70x = 1,283,417.55 × 814,139.70
  4. Step 4: Simplify right side
    855,611.70x = 1,044,881,179,131.74
  5. Step 5: Solve for x
    x = 1,044,881,179,131.74/855,611.70
  6. Step 6: Final answer
    x = 1,221,209.55

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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.