Home / 725,058.78-1,087,698.72-369,879.03

Finding the Fourth Proportional to 725,058.78, 1,087,698.72 and 369,879.03

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Solution

The fourth proportional to 725,058.78, 1,087,698.72 and 369,879.03 is: 554,874.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,058.78 : 1,087,698.72 = 369,879.03 : x
  2. Step 2: Convert to fraction form
    725,058.78/1,087,698.72 = 369,879.03/x
  3. Step 3: Cross multiply
    725,058.78x = 1,087,698.72 × 369,879.03
  4. Step 4: Simplify right side
    725,058.78x = 402,316,947,485.84
  5. Step 5: Solve for x
    x = 402,316,947,485.84/725,058.78
  6. Step 6: Final answer
    x = 554,874.94

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1.5x scale

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.