Home / 629,716.07-869,008.42-357,784.32

Finding the Fourth Proportional to 629,716.07, 869,008.42 and 357,784.32

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Solution

The fourth proportional to 629,716.07, 869,008.42 and 357,784.32 is: 493,742.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,716.07 : 869,008.42 = 357,784.32 : x
  2. Step 2: Convert to fraction form
    629,716.07/869,008.42 = 357,784.32/x
  3. Step 3: Cross multiply
    629,716.07x = 869,008.42 × 357,784.32
  4. Step 4: Simplify right side
    629,716.07x = 310,917,585,441.81
  5. Step 5: Solve for x
    x = 310,917,585,441.81/629,716.07
  6. Step 6: Final answer
    x = 493,742.50

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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.