Home / 1,261,921.25-1,892,885.93-315,292.07

Finding the Fourth Proportional to 1,261,921.25, 1,892,885.93 and 315,292.07

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Solution

The fourth proportional to 1,261,921.25, 1,892,885.93 and 315,292.07 is: 472,939.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,261,921.25 : 1,892,885.93 = 315,292.07 : x
  2. Step 2: Convert to fraction form
    1,261,921.25/1,892,885.93 = 315,292.07/x
  3. Step 3: Cross multiply
    1,261,921.25x = 1,892,885.93 × 315,292.07
  4. Step 4: Simplify right side
    1,261,921.25x = 596,811,923,143.58
  5. Step 5: Solve for x
    x = 596,811,923,143.58/1,261,921.25
  6. Step 6: Final answer
    x = 472,939.12

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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.