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Finding the Fourth Proportional to 439,478.56, 606,477.09 and 248,498.74

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Solution

The fourth proportional to 439,478.56, 606,477.09 and 248,498.74 is: 342,926.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,478.56 : 606,477.09 = 248,498.74 : x
  2. Step 2: Convert to fraction form
    439,478.56/606,477.09 = 248,498.74/x
  3. Step 3: Cross multiply
    439,478.56x = 606,477.09 × 248,498.74
  4. Step 4: Simplify right side
    439,478.56x = 150,708,792,703.87
  5. Step 5: Solve for x
    x = 150,708,792,703.87/439,478.56
  6. Step 6: Final answer
    x = 342,926.38

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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.