Home / 1,123,653.08-1,550,261.42-639,875.18

Finding the Fourth Proportional to 1,123,653.08, 1,550,261.42 and 639,875.18

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Solution

The fourth proportional to 1,123,653.08, 1,550,261.42 and 639,875.18 is: 882,811.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,653.08 : 1,550,261.42 = 639,875.18 : x
  2. Step 2: Convert to fraction form
    1,123,653.08/1,550,261.42 = 639,875.18/x
  3. Step 3: Cross multiply
    1,123,653.08x = 1,550,261.42 × 639,875.18
  4. Step 4: Simplify right side
    1,123,653.08x = 991,973,794,218.87
  5. Step 5: Solve for x
    x = 991,973,794,218.87/1,123,653.08
  6. Step 6: Final answer
    x = 882,811.44

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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.