Home / 743,838-1,026,492.60-404,308.08

Finding the Fourth Proportional to 743,838, 1,026,492.60 and 404,308.08

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Solution

The fourth proportional to 743,838, 1,026,492.60 and 404,308.08 is: 557,943.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,838 : 1,026,492.60 = 404,308.08 : x
  2. Step 2: Convert to fraction form
    743,838/1,026,492.60 = 404,308.08/x
  3. Step 3: Cross multiply
    743,838x = 1,026,492.60 × 404,308.08
  4. Step 4: Simplify right side
    743,838x = 415,019,252,240.21
  5. Step 5: Solve for x
    x = 415,019,252,240.21/743,838
  6. Step 6: Final answer
    x = 557,943.06

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.