Home / 1,201,990.32-1,658,747.03-658,160.57

Finding the Fourth Proportional to 1,201,990.32, 1,658,747.03 and 658,160.57

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Solution

The fourth proportional to 1,201,990.32, 1,658,747.03 and 658,160.57 is: 908,261.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,990.32 : 1,658,747.03 = 658,160.57 : x
  2. Step 2: Convert to fraction form
    1,201,990.32/1,658,747.03 = 658,160.57/x
  3. Step 3: Cross multiply
    1,201,990.32x = 1,658,747.03 × 658,160.57
  4. Step 4: Simplify right side
    1,201,990.32x = 1,091,721,897,159.90
  5. Step 5: Solve for x
    x = 1,091,721,897,159.90/1,201,990.32
  6. Step 6: Final answer
    x = 908,261.80

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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.