Home / 513,622.80-770,434.20-303,152.40

Finding the Fourth Proportional to 513,622.80, 770,434.20 and 303,152.40

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Solution

The fourth proportional to 513,622.80, 770,434.20 and 303,152.40 is: 454,728.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,622.80 : 770,434.20 = 303,152.40 : x
  2. Step 2: Convert to fraction form
    513,622.80/770,434.20 = 303,152.40/x
  3. Step 3: Cross multiply
    513,622.80x = 770,434.20 × 303,152.40
  4. Step 4: Simplify right side
    513,622.80x = 233,558,976,772.08
  5. Step 5: Solve for x
    x = 233,558,976,772.08/513,622.80
  6. Step 6: Final answer
    x = 454,728.60

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Similar ratio
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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.