Home / 804,990.40-1,207,631.40-404,623.60

Finding the Fourth Proportional to 804,990.40, 1,207,631.40 and 404,623.60

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Solution

The fourth proportional to 804,990.40, 1,207,631.40 and 404,623.60 is: 607,008.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,990.40 : 1,207,631.40 = 404,623.60 : x
  2. Step 2: Convert to fraction form
    804,990.40/1,207,631.40 = 404,623.60/x
  3. Step 3: Cross multiply
    804,990.40x = 1,207,631.40 × 404,623.60
  4. Step 4: Simplify right side
    804,990.40x = 488,636,164,541.04
  5. Step 5: Solve for x
    x = 488,636,164,541.04/804,990.40
  6. Step 6: Final answer
    x = 607,008.69

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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.