Home / 729,945.60-1,094,140.80-280,492.80

Finding the Fourth Proportional to 729,945.60, 1,094,140.80 and 280,492.80

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Solution

The fourth proportional to 729,945.60, 1,094,140.80 and 280,492.80 is: 420,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,945.60 : 1,094,140.80 = 280,492.80 : x
  2. Step 2: Convert to fraction form
    729,945.60/1,094,140.80 = 280,492.80/x
  3. Step 3: Cross multiply
    729,945.60x = 1,094,140.80 × 280,492.80
  4. Step 4: Simplify right side
    729,945.60x = 306,898,616,586.24
  5. Step 5: Solve for x
    x = 306,898,616,586.24/729,945.60
  6. Step 6: Final answer
    x = 420,440.40

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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.