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Finding the Fourth Proportional to 508,426.02, 700,281.03 and 378,949.56

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Solution

The fourth proportional to 508,426.02, 700,281.03 and 378,949.56 is: 521,946.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,426.02 : 700,281.03 = 378,949.56 : x
  2. Step 2: Convert to fraction form
    508,426.02/700,281.03 = 378,949.56/x
  3. Step 3: Cross multiply
    508,426.02x = 700,281.03 × 378,949.56
  4. Step 4: Simplify right side
    508,426.02x = 265,371,188,194.85
  5. Step 5: Solve for x
    x = 265,371,188,194.85/508,426.02
  6. Step 6: Final answer
    x = 521,946.51

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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.