Home / 942,487.11-1,413,195.09-643,329.81

Finding the Fourth Proportional to 942,487.11, 1,413,195.09 and 643,329.81

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Solution

The fourth proportional to 942,487.11, 1,413,195.09 and 643,329.81 is: 964,629.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,487.11 : 1,413,195.09 = 643,329.81 : x
  2. Step 2: Convert to fraction form
    942,487.11/1,413,195.09 = 643,329.81/x
  3. Step 3: Cross multiply
    942,487.11x = 1,413,195.09 × 643,329.81
  4. Step 4: Simplify right side
    942,487.11x = 909,150,528,742.63
  5. Step 5: Solve for x
    x = 909,150,528,742.63/942,487.11
  6. Step 6: Final answer
    x = 964,629.14

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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.