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Finding the Fourth Proportional to 564,074.22, 778,422.58 and 309,425.41

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Solution

The fourth proportional to 564,074.22, 778,422.58 and 309,425.41 is: 427,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,074.22 : 778,422.58 = 309,425.41 : x
  2. Step 2: Convert to fraction form
    564,074.22/778,422.58 = 309,425.41/x
  3. Step 3: Cross multiply
    564,074.22x = 778,422.58 × 309,425.41
  4. Step 4: Simplify right side
    564,074.22x = 240,863,725,196.19
  5. Step 5: Solve for x
    x = 240,863,725,196.19/564,074.22
  6. Step 6: Final answer
    x = 427,007.15

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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.