Home / 2,128,430.72-2,937,296.16-1,161,623.04

Finding the Fourth Proportional to 2,128,430.72, 2,937,296.16 and 1,161,623.04

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Solution

The fourth proportional to 2,128,430.72, 2,937,296.16 and 1,161,623.04 is: 1,603,073.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,128,430.72 : 2,937,296.16 = 1,161,623.04 : x
  2. Step 2: Convert to fraction form
    2,128,430.72/2,937,296.16 = 1,161,623.04/x
  3. Step 3: Cross multiply
    2,128,430.72x = 2,937,296.16 × 1,161,623.04
  4. Step 4: Simplify right side
    2,128,430.72x = 3,412,030,894,759.53
  5. Step 5: Solve for x
    x = 3,412,030,894,759.53/2,128,430.72
  6. Step 6: Final answer
    x = 1,603,073.51

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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.