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Finding the Fourth Proportional to 561,841.22, 775,340.88 and 307,192.41

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Solution

The fourth proportional to 561,841.22, 775,340.88 and 307,192.41 is: 423,925.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,841.22 : 775,340.88 = 307,192.41 : x
  2. Step 2: Convert to fraction form
    561,841.22/775,340.88 = 307,192.41/x
  3. Step 3: Cross multiply
    561,841.22x = 775,340.88 × 307,192.41
  4. Step 4: Simplify right side
    561,841.22x = 238,178,832,758.04
  5. Step 5: Solve for x
    x = 238,178,832,758.04/561,841.22
  6. Step 6: Final answer
    x = 423,925.52

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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.