Home / 1,120,227.76-1,545,852.80-636,725.76

Finding the Fourth Proportional to 1,120,227.76, 1,545,852.80 and 636,725.76

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Solution

The fourth proportional to 1,120,227.76, 1,545,852.80 and 636,725.76 is: 878,646.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,227.76 : 1,545,852.80 = 636,725.76 : x
  2. Step 2: Convert to fraction form
    1,120,227.76/1,545,852.80 = 636,725.76/x
  3. Step 3: Cross multiply
    1,120,227.76x = 1,545,852.80 × 636,725.76
  4. Step 4: Simplify right side
    1,120,227.76x = 984,284,298,928.13
  5. Step 5: Solve for x
    x = 984,284,298,928.13/1,120,227.76
  6. Step 6: Final answer
    x = 878,646.59

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1.5x scale

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.