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Finding the Fourth Proportional to 561,848.73, 775,351.23 and 307,199.91

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Solution

The fourth proportional to 561,848.73, 775,351.23 and 307,199.91 is: 423,935.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,848.73 : 775,351.23 = 307,199.91 : x
  2. Step 2: Convert to fraction form
    561,848.73/775,351.23 = 307,199.91/x
  3. Step 3: Cross multiply
    561,848.73x = 775,351.23 × 307,199.91
  4. Step 4: Simplify right side
    561,848.73x = 238,187,828,074.39
  5. Step 5: Solve for x
    x = 238,187,828,074.39/561,848.73
  6. Step 6: Final answer
    x = 423,935.87

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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.