Home / 988,641.80-1,364,272.68-558,896.30

Finding the Fourth Proportional to 988,641.80, 1,364,272.68 and 558,896.30

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Solution

The fourth proportional to 988,641.80, 1,364,272.68 and 558,896.30 is: 771,246.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,641.80 : 1,364,272.68 = 558,896.30 : x
  2. Step 2: Convert to fraction form
    988,641.80/1,364,272.68 = 558,896.30/x
  3. Step 3: Cross multiply
    988,641.80x = 1,364,272.68 × 558,896.30
  4. Step 4: Simplify right side
    988,641.80x = 762,486,953,043.08
  5. Step 5: Solve for x
    x = 762,486,953,043.08/988,641.80
  6. Step 6: Final answer
    x = 771,246.93

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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.