Home / 804,639.40-1,207,104.90-404,272.60

Finding the Fourth Proportional to 804,639.40, 1,207,104.90 and 404,272.60

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Solution

The fourth proportional to 804,639.40, 1,207,104.90 and 404,272.60 is: 606,482.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,639.40 : 1,207,104.90 = 404,272.60 : x
  2. Step 2: Convert to fraction form
    804,639.40/1,207,104.90 = 404,272.60/x
  3. Step 3: Cross multiply
    804,639.40x = 1,207,104.90 × 404,272.60
  4. Step 4: Simplify right side
    804,639.40x = 487,999,436,395.74
  5. Step 5: Solve for x
    x = 487,999,436,395.74/804,639.40
  6. Step 6: Final answer
    x = 606,482.15

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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.