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Finding the Fourth Proportional to 561,228.74, 774,512.68 and 306,596.32

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Solution

The fourth proportional to 561,228.74, 774,512.68 and 306,596.32 is: 423,112.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,228.74 : 774,512.68 = 306,596.32 : x
  2. Step 2: Convert to fraction form
    561,228.74/774,512.68 = 306,596.32/x
  3. Step 3: Cross multiply
    561,228.74x = 774,512.68 × 306,596.32
  4. Step 4: Simplify right side
    561,228.74x = 237,462,737,481.34
  5. Step 5: Solve for x
    x = 237,462,737,481.34/561,228.74
  6. Step 6: Final answer
    x = 423,112.22

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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.