Home / 2,620,684.25-3,931,972.28-915,078.93

Finding the Fourth Proportional to 2,620,684.25, 3,931,972.28 and 915,078.93

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Solution

The fourth proportional to 2,620,684.25, 3,931,972.28 and 915,078.93 is: 1,372,948.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,684.25 : 3,931,972.28 = 915,078.93 : x
  2. Step 2: Convert to fraction form
    2,620,684.25/3,931,972.28 = 915,078.93/x
  3. Step 3: Cross multiply
    2,620,684.25x = 3,931,972.28 × 915,078.93
  4. Step 4: Simplify right side
    2,620,684.25x = 3,598,064,986,772.06
  5. Step 5: Solve for x
    x = 3,598,064,986,772.06/2,620,684.25
  6. Step 6: Final answer
    x = 1,372,948.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.