Home / 791,063.48-1,091,667.64-428,487.46

Finding the Fourth Proportional to 791,063.48, 1,091,667.64 and 428,487.46

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Solution

The fourth proportional to 791,063.48, 1,091,667.64 and 428,487.46 is: 591,312.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,063.48 : 1,091,667.64 = 428,487.46 : x
  2. Step 2: Convert to fraction form
    791,063.48/1,091,667.64 = 428,487.46/x
  3. Step 3: Cross multiply
    791,063.48x = 1,091,667.64 × 428,487.46
  4. Step 4: Simplify right side
    791,063.48x = 467,765,894,227.79
  5. Step 5: Solve for x
    x = 467,765,894,227.79/791,063.48
  6. Step 6: Final answer
    x = 591,312.72

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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.