Home / 1,201,981.81-1,658,735.10-658,151.30

Finding the Fourth Proportional to 1,201,981.81, 1,658,735.10 and 658,151.30

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Solution

The fourth proportional to 1,201,981.81, 1,658,735.10 and 658,151.30 is: 908,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,201,981.81 : 1,658,735.10 = 658,151.30 : x
  2. Step 2: Convert to fraction form
    1,201,981.81/1,658,735.10 = 658,151.30/x
  3. Step 3: Cross multiply
    1,201,981.81x = 1,658,735.10 × 658,151.30
  4. Step 4: Simplify right side
    1,201,981.81x = 1,091,698,654,126.95
  5. Step 5: Solve for x
    x = 1,091,698,654,126.95/1,201,981.81
  6. Step 6: Final answer
    x = 908,248.90

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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.