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Finding the Fourth Proportional to 561,222.52, 774,470.84 and 306,573.71

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Solution

The fourth proportional to 561,222.52, 774,470.84 and 306,573.71 is: 423,062.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,222.52 : 774,470.84 = 306,573.71 : x
  2. Step 2: Convert to fraction form
    561,222.52/774,470.84 = 306,573.71/x
  3. Step 3: Cross multiply
    561,222.52x = 774,470.84 × 306,573.71
  4. Step 4: Simplify right side
    561,222.52x = 237,432,400,243.51
  5. Step 5: Solve for x
    x = 237,432,400,243.51/561,222.52
  6. Step 6: Final answer
    x = 423,062.85

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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.