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Finding the Fourth Proportional to 407,637.34, 612,270.94 and 245,854.82

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Solution

The fourth proportional to 407,637.34, 612,270.94 and 245,854.82 is: 369,273.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,637.34 : 612,270.94 = 245,854.82 : x
  2. Step 2: Convert to fraction form
    407,637.34/612,270.94 = 245,854.82/x
  3. Step 3: Cross multiply
    407,637.34x = 612,270.94 × 245,854.82
  4. Step 4: Simplify right side
    407,637.34x = 150,529,761,744.93
  5. Step 5: Solve for x
    x = 150,529,761,744.93/407,637.34
  6. Step 6: Final answer
    x = 369,273.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.