Home / 548,638.88-757,122.77-306,925.50

Finding the Fourth Proportional to 548,638.88, 757,122.77 and 306,925.50

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Solution

The fourth proportional to 548,638.88, 757,122.77 and 306,925.50 is: 423,557.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,638.88 : 757,122.77 = 306,925.50 : x
  2. Step 2: Convert to fraction form
    548,638.88/757,122.77 = 306,925.50/x
  3. Step 3: Cross multiply
    548,638.88x = 757,122.77 × 306,925.50
  4. Step 4: Simplify right side
    548,638.88x = 232,380,282,671.74
  5. Step 5: Solve for x
    x = 232,380,282,671.74/548,638.88
  6. Step 6: Final answer
    x = 423,557.81

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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.