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Finding the Fourth Proportional to 439,478.40, 606,492.98 and 248,487.68

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Solution

The fourth proportional to 439,478.40, 606,492.98 and 248,487.68 is: 342,920.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,478.40 : 606,492.98 = 248,487.68 : x
  2. Step 2: Convert to fraction form
    439,478.40/606,492.98 = 248,487.68/x
  3. Step 3: Cross multiply
    439,478.40x = 606,492.98 × 248,487.68
  4. Step 4: Simplify right side
    439,478.40x = 150,706,033,536.49
  5. Step 5: Solve for x
    x = 150,706,033,536.49/439,478.40
  6. Step 6: Final answer
    x = 342,920.23

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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.