Home / 768,900.51-1,061,078.40-424,760.04

Finding the Fourth Proportional to 768,900.51, 1,061,078.40 and 424,760.04

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Solution

The fourth proportional to 768,900.51, 1,061,078.40 and 424,760.04 is: 586,166.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,900.51 : 1,061,078.40 = 424,760.04 : x
  2. Step 2: Convert to fraction form
    768,900.51/1,061,078.40 = 424,760.04/x
  3. Step 3: Cross multiply
    768,900.51x = 1,061,078.40 × 424,760.04
  4. Step 4: Simplify right side
    768,900.51x = 450,703,703,627.14
  5. Step 5: Solve for x
    x = 450,703,703,627.14/768,900.51
  6. Step 6: Final answer
    x = 586,166.48

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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.