Home / 449,221.87-619,928.31-245,276.92

Finding the Fourth Proportional to 449,221.87, 619,928.31 and 245,276.92

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Solution

The fourth proportional to 449,221.87, 619,928.31 and 245,276.92 is: 338,483.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,221.87 : 619,928.31 = 245,276.92 : x
  2. Step 2: Convert to fraction form
    449,221.87/619,928.31 = 245,276.92/x
  3. Step 3: Cross multiply
    449,221.87x = 619,928.31 × 245,276.92
  4. Step 4: Simplify right side
    449,221.87x = 152,054,106,497.61
  5. Step 5: Solve for x
    x = 152,054,106,497.61/449,221.87
  6. Step 6: Final answer
    x = 338,483.31

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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.