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Finding the Fourth Proportional to 561,124.83, 774,352.27 and 306,476.62

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Solution

The fourth proportional to 561,124.83, 774,352.27 and 306,476.62 is: 422,937.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,124.83 : 774,352.27 = 306,476.62 : x
  2. Step 2: Convert to fraction form
    561,124.83/774,352.27 = 306,476.62/x
  3. Step 3: Cross multiply
    561,124.83x = 774,352.27 × 306,476.62
  4. Step 4: Simplify right side
    561,124.83x = 237,320,867,477.94
  5. Step 5: Solve for x
    x = 237,320,867,477.94/561,124.83
  6. Step 6: Final answer
    x = 422,937.74

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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.