Home / 743,574.36-1,026,138.77-404,042.61

Finding the Fourth Proportional to 743,574.36, 1,026,138.77 and 404,042.61

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Solution

The fourth proportional to 743,574.36, 1,026,138.77 and 404,042.61 is: 557,582.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,574.36 : 1,026,138.77 = 404,042.61 : x
  2. Step 2: Convert to fraction form
    743,574.36/1,026,138.77 = 404,042.61/x
  3. Step 3: Cross multiply
    743,574.36x = 1,026,138.77 × 404,042.61
  4. Step 4: Simplify right side
    743,574.36x = 414,603,784,832.78
  5. Step 5: Solve for x
    x = 414,603,784,832.78/743,574.36
  6. Step 6: Final answer
    x = 557,582.14

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1.5x scale

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.