Home / 840,452.54-1,259,929.71-307,848.89

Finding the Fourth Proportional to 840,452.54, 1,259,929.71 and 307,848.89

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Solution

The fourth proportional to 840,452.54, 1,259,929.71 and 307,848.89 is: 461,498.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,452.54 : 1,259,929.71 = 307,848.89 : x
  2. Step 2: Convert to fraction form
    840,452.54/1,259,929.71 = 307,848.89/x
  3. Step 3: Cross multiply
    840,452.54x = 1,259,929.71 × 307,848.89
  4. Step 4: Simplify right side
    840,452.54x = 387,867,956,401.87
  5. Step 5: Solve for x
    x = 387,867,956,401.87/840,452.54
  6. Step 6: Final answer
    x = 461,498.94

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1.5x scale

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.