Home / 629,909.43-869,237.53-357,939.58

Finding the Fourth Proportional to 629,909.43, 869,237.53 and 357,939.58

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Solution

The fourth proportional to 629,909.43, 869,237.53 and 357,939.58 is: 493,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,909.43 : 869,237.53 = 357,939.58 : x
  2. Step 2: Convert to fraction form
    629,909.43/869,237.53 = 357,939.58/x
  3. Step 3: Cross multiply
    629,909.43x = 869,237.53 × 357,939.58
  4. Step 4: Simplify right side
    629,909.43x = 311,134,516,408.44
  5. Step 5: Solve for x
    x = 311,134,516,408.44/629,909.43
  6. Step 6: Final answer
    x = 493,935.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.