Home / 629,931.90-944,897.85-345,512.55

Finding the Fourth Proportional to 629,931.90, 944,897.85 and 345,512.55

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Solution

The fourth proportional to 629,931.90, 944,897.85 and 345,512.55 is: 518,268.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,931.90 : 944,897.85 = 345,512.55 : x
  2. Step 2: Convert to fraction form
    629,931.90/944,897.85 = 345,512.55/x
  3. Step 3: Cross multiply
    629,931.90x = 944,897.85 × 345,512.55
  4. Step 4: Simplify right side
    629,931.90x = 326,474,065,643.02
  5. Step 5: Solve for x
    x = 326,474,065,643.02/629,931.90
  6. Step 6: Final answer
    x = 518,268.83

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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.