Home / 1,427,542.71-2,140,458.68-454,486.47

Finding the Fourth Proportional to 1,427,542.71, 2,140,458.68 and 454,486.47

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Solution

The fourth proportional to 1,427,542.71, 2,140,458.68 and 454,486.47 is: 681,457.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,427,542.71 : 2,140,458.68 = 454,486.47 : x
  2. Step 2: Convert to fraction form
    1,427,542.71/2,140,458.68 = 454,486.47/x
  3. Step 3: Cross multiply
    1,427,542.71x = 2,140,458.68 × 454,486.47
  4. Step 4: Simplify right side
    1,427,542.71x = 972,809,507,381.63
  5. Step 5: Solve for x
    x = 972,809,507,381.63/1,427,542.71
  6. Step 6: Final answer
    x = 681,457.37

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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.