Home / 805,006.40-1,207,655.40-404,639.60

Finding the Fourth Proportional to 805,006.40, 1,207,655.40 and 404,639.60

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Solution

The fourth proportional to 805,006.40, 1,207,655.40 and 404,639.60 is: 607,032.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,006.40 : 1,207,655.40 = 404,639.60 : x
  2. Step 2: Convert to fraction form
    805,006.40/1,207,655.40 = 404,639.60/x
  3. Step 3: Cross multiply
    805,006.40x = 1,207,655.40 × 404,639.60
  4. Step 4: Simplify right side
    805,006.40x = 488,665,197,993.84
  5. Step 5: Solve for x
    x = 488,665,197,993.84/805,006.40
  6. Step 6: Final answer
    x = 607,032.69

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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.