Home / 805,410.81-1,207,361.70-272,558.79

Finding the Fourth Proportional to 805,410.81, 1,207,361.70 and 272,558.79

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Solution

The fourth proportional to 805,410.81, 1,207,361.70 and 272,558.79 is: 408,582.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,410.81 : 1,207,361.70 = 272,558.79 : x
  2. Step 2: Convert to fraction form
    805,410.81/1,207,361.70 = 272,558.79/x
  3. Step 3: Cross multiply
    805,410.81x = 1,207,361.70 × 272,558.79
  4. Step 4: Simplify right side
    805,410.81x = 329,077,044,044.34
  5. Step 5: Solve for x
    x = 329,077,044,044.34/805,410.81
  6. Step 6: Final answer
    x = 408,582.85

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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.