Home / 988,018.64-1,363,447.92-558,289.52

Finding the Fourth Proportional to 988,018.64, 1,363,447.92 and 558,289.52

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Solution

The fourth proportional to 988,018.64, 1,363,447.92 and 558,289.52 is: 770,429.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,018.64 : 1,363,447.92 = 558,289.52 : x
  2. Step 2: Convert to fraction form
    988,018.64/1,363,447.92 = 558,289.52/x
  3. Step 3: Cross multiply
    988,018.64x = 1,363,447.92 × 558,289.52
  4. Step 4: Simplify right side
    988,018.64x = 761,198,684,801.80
  5. Step 5: Solve for x
    x = 761,198,684,801.80/988,018.64
  6. Step 6: Final answer
    x = 770,429.48

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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.