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Finding the Fourth Proportional to 561,275.26, 774,542.55 and 319,592.32

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Solution

The fourth proportional to 561,275.26, 774,542.55 and 319,592.32 is: 441,027.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,275.26 : 774,542.55 = 319,592.32 : x
  2. Step 2: Convert to fraction form
    561,275.26/774,542.55 = 319,592.32/x
  3. Step 3: Cross multiply
    561,275.26x = 774,542.55 × 319,592.32
  4. Step 4: Simplify right side
    561,275.26x = 247,537,849,755.33
  5. Step 5: Solve for x
    x = 247,537,849,755.33/561,275.26
  6. Step 6: Final answer
    x = 441,027.55

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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.