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Finding the Fourth Proportional to 561,220.23, 774,500.93 and 306,587.82

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Solution

The fourth proportional to 561,220.23, 774,500.93 and 306,587.82 is: 423,100.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,220.23 : 774,500.93 = 306,587.82 : x
  2. Step 2: Convert to fraction form
    561,220.23/774,500.93 = 306,587.82/x
  3. Step 3: Cross multiply
    561,220.23x = 774,500.93 × 306,587.82
  4. Step 4: Simplify right side
    561,220.23x = 237,452,550,183.73
  5. Step 5: Solve for x
    x = 237,452,550,183.73/561,220.23
  6. Step 6: Final answer
    x = 423,100.48

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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.