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Finding the Fourth Proportional to 668,167.29, 921,829.21 and 438,848.89

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Solution

The fourth proportional to 668,167.29, 921,829.21 and 438,848.89 is: 605,452.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,167.29 : 921,829.21 = 438,848.89 : x
  2. Step 2: Convert to fraction form
    668,167.29/921,829.21 = 438,848.89/x
  3. Step 3: Cross multiply
    668,167.29x = 921,829.21 × 438,848.89
  4. Step 4: Simplify right side
    668,167.29x = 404,543,724,953.48
  5. Step 5: Solve for x
    x = 404,543,724,953.48/668,167.29
  6. Step 6: Final answer
    x = 605,452.76

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1.5x scale

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.