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Finding the Fourth Proportional to 804,386.88, 1,206,735.84 and 305,712

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Solution

The fourth proportional to 804,386.88, 1,206,735.84 and 305,712 is: 458,627.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,386.88 : 1,206,735.84 = 305,712 : x
  2. Step 2: Convert to fraction form
    804,386.88/1,206,735.84 = 305,712/x
  3. Step 3: Cross multiply
    804,386.88x = 1,206,735.84 × 305,712
  4. Step 4: Simplify right side
    804,386.88x = 368,913,627,118.08
  5. Step 5: Solve for x
    x = 368,913,627,118.08/804,386.88
  6. Step 6: Final answer
    x = 458,627.11

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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.