Home / 558,830.60-769,238.34-487,085.48

Finding the Fourth Proportional to 558,830.60, 769,238.34 and 487,085.48

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Solution

The fourth proportional to 558,830.60, 769,238.34 and 487,085.48 is: 670,480.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,830.60 : 769,238.34 = 487,085.48 : x
  2. Step 2: Convert to fraction form
    558,830.60/769,238.34 = 487,085.48/x
  3. Step 3: Cross multiply
    558,830.60x = 769,238.34 × 487,085.48
  4. Step 4: Simplify right side
    558,830.60x = 374,684,826,073.30
  5. Step 5: Solve for x
    x = 374,684,826,073.30/558,830.60
  6. Step 6: Final answer
    x = 670,480.15

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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.