Home / 988,640.80-1,364,271.30-558,895.30

Finding the Fourth Proportional to 988,640.80, 1,364,271.30 and 558,895.30

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Solution

The fourth proportional to 988,640.80, 1,364,271.30 and 558,895.30 is: 771,245.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,640.80 : 1,364,271.30 = 558,895.30 : x
  2. Step 2: Convert to fraction form
    988,640.80/1,364,271.30 = 558,895.30/x
  3. Step 3: Cross multiply
    988,640.80x = 1,364,271.30 × 558,895.30
  4. Step 4: Simplify right side
    988,640.80x = 762,484,817,494.89
  5. Step 5: Solve for x
    x = 762,484,817,494.89/988,640.80
  6. Step 6: Final answer
    x = 771,245.55

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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.