Home / 629,968.80-944,953.20-315,040.80

Finding the Fourth Proportional to 629,968.80, 944,953.20 and 315,040.80

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Solution

The fourth proportional to 629,968.80, 944,953.20 and 315,040.80 is: 472,561.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,968.80 : 944,953.20 = 315,040.80 : x
  2. Step 2: Convert to fraction form
    629,968.80/944,953.20 = 315,040.80/x
  3. Step 3: Cross multiply
    629,968.80x = 944,953.20 × 315,040.80
  4. Step 4: Simplify right side
    629,968.80x = 297,698,812,090.56
  5. Step 5: Solve for x
    x = 297,698,812,090.56/629,968.80
  6. Step 6: Final answer
    x = 472,561.20

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Double scale
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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.