Home / 1,428,223.73-2,140,916.40-716,078.21

Finding the Fourth Proportional to 1,428,223.73, 2,140,916.40 and 716,078.21

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Solution

The fourth proportional to 1,428,223.73, 2,140,916.40 and 716,078.21 is: 1,073,405.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,223.73 : 2,140,916.40 = 716,078.21 : x
  2. Step 2: Convert to fraction form
    1,428,223.73/2,140,916.40 = 716,078.21/x
  3. Step 3: Cross multiply
    1,428,223.73x = 2,140,916.40 × 716,078.21
  4. Step 4: Simplify right side
    1,428,223.73x = 1,533,063,572,767.06
  5. Step 5: Solve for x
    x = 1,533,063,572,767.06/1,428,223.73
  6. Step 6: Final answer
    x = 1,073,405.76

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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.