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Finding the Fourth Proportional to 639,092.48, 881,950.44 and 352,612.40

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Solution

The fourth proportional to 639,092.48, 881,950.44 and 352,612.40 is: 486,606.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,092.48 : 881,950.44 = 352,612.40 : x
  2. Step 2: Convert to fraction form
    639,092.48/881,950.44 = 352,612.40/x
  3. Step 3: Cross multiply
    639,092.48x = 881,950.44 × 352,612.40
  4. Step 4: Simplify right side
    639,092.48x = 310,986,661,329.46
  5. Step 5: Solve for x
    x = 310,986,661,329.46/639,092.48
  6. Step 6: Final answer
    x = 486,606.67

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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.