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Finding the Fourth Proportional to 449,681.34, 620,560.35 and 248,477.34

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Solution

The fourth proportional to 449,681.34, 620,560.35 and 248,477.34 is: 342,898.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,681.34 : 620,560.35 = 248,477.34 : x
  2. Step 2: Convert to fraction form
    449,681.34/620,560.35 = 248,477.34/x
  3. Step 3: Cross multiply
    449,681.34x = 620,560.35 × 248,477.34
  4. Step 4: Simplify right side
    449,681.34x = 154,195,185,077.47
  5. Step 5: Solve for x
    x = 154,195,185,077.47/449,681.34
  6. Step 6: Final answer
    x = 342,898.78

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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.