Home / 449,240.20-619,946.75-245,290.48

Finding the Fourth Proportional to 449,240.20, 619,946.75 and 245,290.48

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Solution

The fourth proportional to 449,240.20, 619,946.75 and 245,290.48 is: 338,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,240.20 : 619,946.75 = 245,290.48 : x
  2. Step 2: Convert to fraction form
    449,240.20/619,946.75 = 245,290.48/x
  3. Step 3: Cross multiply
    449,240.20x = 619,946.75 × 245,290.48
  4. Step 4: Simplify right side
    449,240.20x = 152,067,035,881.94
  5. Step 5: Solve for x
    x = 152,067,035,881.94/449,240.20
  6. Step 6: Final answer
    x = 338,498.28

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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.