Home / 988,020.63-1,363,450.73-558,291.47

Finding the Fourth Proportional to 988,020.63, 1,363,450.73 and 558,291.47

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Solution

The fourth proportional to 988,020.63, 1,363,450.73 and 558,291.47 is: 770,432.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,020.63 : 1,363,450.73 = 558,291.47 : x
  2. Step 2: Convert to fraction form
    988,020.63/1,363,450.73 = 558,291.47/x
  3. Step 3: Cross multiply
    988,020.63x = 1,363,450.73 × 558,291.47
  4. Step 4: Simplify right side
    988,020.63x = 761,202,902,715.56
  5. Step 5: Solve for x
    x = 761,202,902,715.56/988,020.63
  6. Step 6: Final answer
    x = 770,432.20

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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.