Home / 988,124.72-1,363,681.32-558,444.56

Finding the Fourth Proportional to 988,124.72, 1,363,681.32 and 558,444.56

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Solution

The fourth proportional to 988,124.72, 1,363,681.32 and 558,444.56 is: 770,692.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,124.72 : 1,363,681.32 = 558,444.56 : x
  2. Step 2: Convert to fraction form
    988,124.72/1,363,681.32 = 558,444.56/x
  3. Step 3: Cross multiply
    988,124.72x = 1,363,681.32 × 558,444.56
  4. Step 4: Simplify right side
    988,124.72x = 761,540,414,727.62
  5. Step 5: Solve for x
    x = 761,540,414,727.62/988,124.72
  6. Step 6: Final answer
    x = 770,692.61

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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.