Home / 921,369.84-1,271,055.96-539,162.16

Finding the Fourth Proportional to 921,369.84, 1,271,055.96 and 539,162.16

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Solution

The fourth proportional to 921,369.84, 1,271,055.96 and 539,162.16 is: 743,789.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,369.84 : 1,271,055.96 = 539,162.16 : x
  2. Step 2: Convert to fraction form
    921,369.84/1,271,055.96 = 539,162.16/x
  3. Step 3: Cross multiply
    921,369.84x = 1,271,055.96 × 539,162.16
  4. Step 4: Simplify right side
    921,369.84x = 685,305,276,874.47
  5. Step 5: Solve for x
    x = 685,305,276,874.47/921,369.84
  6. Step 6: Final answer
    x = 743,789.57

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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.