Home / 804,815.40-1,207,368.90-404,448.60

Finding the Fourth Proportional to 804,815.40, 1,207,368.90 and 404,448.60

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Solution

The fourth proportional to 804,815.40, 1,207,368.90 and 404,448.60 is: 606,746.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,815.40 : 1,207,368.90 = 404,448.60 : x
  2. Step 2: Convert to fraction form
    804,815.40/1,207,368.90 = 404,448.60/x
  3. Step 3: Cross multiply
    804,815.40x = 1,207,368.90 × 404,448.60
  4. Step 4: Simplify right side
    804,815.40x = 488,318,661,288.54
  5. Step 5: Solve for x
    x = 488,318,661,288.54/804,815.40
  6. Step 6: Final answer
    x = 606,746.17

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1.5x scale

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.