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Finding the Fourth Proportional to 550,334.20, 825,501.30 and 495,221.80

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Solution

The fourth proportional to 550,334.20, 825,501.30 and 495,221.80 is: 742,832.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,334.20 : 825,501.30 = 495,221.80 : x
  2. Step 2: Convert to fraction form
    550,334.20/825,501.30 = 495,221.80/x
  3. Step 3: Cross multiply
    550,334.20x = 825,501.30 × 495,221.80
  4. Step 4: Simplify right side
    550,334.20x = 408,806,239,688.34
  5. Step 5: Solve for x
    x = 408,806,239,688.34/550,334.20
  6. Step 6: Final answer
    x = 742,832.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.