Home / 921,956.34-1,383,120.36-389,476.47

Finding the Fourth Proportional to 921,956.34, 1,383,120.36 and 389,476.47

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Solution

The fourth proportional to 921,956.34, 1,383,120.36 and 389,476.47 is: 584,293.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,956.34 : 1,383,120.36 = 389,476.47 : x
  2. Step 2: Convert to fraction form
    921,956.34/1,383,120.36 = 389,476.47/x
  3. Step 3: Cross multiply
    921,956.34x = 1,383,120.36 × 389,476.47
  4. Step 4: Simplify right side
    921,956.34x = 538,692,835,397.93
  5. Step 5: Solve for x
    x = 538,692,835,397.93/921,956.34
  6. Step 6: Final answer
    x = 584,293.22

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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.