Home / 842,923.40-1,264,385.10-443,409.80

Finding the Fourth Proportional to 842,923.40, 1,264,385.10 and 443,409.80

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Solution

The fourth proportional to 842,923.40, 1,264,385.10 and 443,409.80 is: 665,114.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    842,923.40 : 1,264,385.10 = 443,409.80 : x
  2. Step 2: Convert to fraction form
    842,923.40/1,264,385.10 = 443,409.80/x
  3. Step 3: Cross multiply
    842,923.40x = 1,264,385.10 × 443,409.80
  4. Step 4: Simplify right side
    842,923.40x = 560,640,744,313.98
  5. Step 5: Solve for x
    x = 560,640,744,313.98/842,923.40
  6. Step 6: Final answer
    x = 665,114.70

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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.