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Finding the Fourth Proportional to 449,602.56, 620,444.16 and 248,417.28

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Solution

The fourth proportional to 449,602.56, 620,444.16 and 248,417.28 is: 342,811.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,602.56 : 620,444.16 = 248,417.28 : x
  2. Step 2: Convert to fraction form
    449,602.56/620,444.16 = 248,417.28/x
  3. Step 3: Cross multiply
    449,602.56x = 620,444.16 × 248,417.28
  4. Step 4: Simplify right side
    449,602.56x = 154,129,050,619.09
  5. Step 5: Solve for x
    x = 154,129,050,619.09/449,602.56
  6. Step 6: Final answer
    x = 342,811.77

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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.