Home / 755,078.32-1,042,015.44-415,554.40

Finding the Fourth Proportional to 755,078.32, 1,042,015.44 and 415,554.40

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Solution

The fourth proportional to 755,078.32, 1,042,015.44 and 415,554.40 is: 573,469.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,078.32 : 1,042,015.44 = 415,554.40 : x
  2. Step 2: Convert to fraction form
    755,078.32/1,042,015.44 = 415,554.40/x
  3. Step 3: Cross multiply
    755,078.32x = 1,042,015.44 × 415,554.40
  4. Step 4: Simplify right side
    755,078.32x = 433,014,100,959.94
  5. Step 5: Solve for x
    x = 433,014,100,959.94/755,078.32
  6. Step 6: Final answer
    x = 573,469.12

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Double scale
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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.