Home / 767,279.79-1,058,821.83-423,130.23

Finding the Fourth Proportional to 767,279.79, 1,058,821.83 and 423,130.23

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Solution

The fourth proportional to 767,279.79, 1,058,821.83 and 423,130.23 is: 583,906.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,279.79 : 1,058,821.83 = 423,130.23 : x
  2. Step 2: Convert to fraction form
    767,279.79/1,058,821.83 = 423,130.23/x
  3. Step 3: Cross multiply
    767,279.79x = 1,058,821.83 × 423,130.23
  4. Step 4: Simplify right side
    767,279.79x = 448,019,524,456.92
  5. Step 5: Solve for x
    x = 448,019,524,456.92/767,279.79
  6. Step 6: Final answer
    x = 583,906.33

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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.