Home / 1,528,831.81-2,288,257.54-1,123,916.80

Finding the Fourth Proportional to 1,528,831.81, 2,288,257.54 and 1,123,916.80

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Solution

The fourth proportional to 1,528,831.81, 2,288,257.54 and 1,123,916.80 is: 1,682,206.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,528,831.81 : 2,288,257.54 = 1,123,916.80 : x
  2. Step 2: Convert to fraction form
    1,528,831.81/2,288,257.54 = 1,123,916.80/x
  3. Step 3: Cross multiply
    1,528,831.81x = 2,288,257.54 × 1,123,916.80
  4. Step 4: Simplify right side
    1,528,831.81x = 2,571,811,091,932.67
  5. Step 5: Solve for x
    x = 2,571,811,091,932.67/1,528,831.81
  6. Step 6: Final answer
    x = 1,682,206.69

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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.