Home / 645,933.29-891,381.53-359,448.44

Finding the Fourth Proportional to 645,933.29, 891,381.53 and 359,448.44

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Solution

The fourth proportional to 645,933.29, 891,381.53 and 359,448.44 is: 496,035.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,933.29 : 891,381.53 = 359,448.44 : x
  2. Step 2: Convert to fraction form
    645,933.29/891,381.53 = 359,448.44/x
  3. Step 3: Cross multiply
    645,933.29x = 891,381.53 × 359,448.44
  4. Step 4: Simplify right side
    645,933.29x = 320,405,698,606.07
  5. Step 5: Solve for x
    x = 320,405,698,606.07/645,933.29
  6. Step 6: Final answer
    x = 496,035.28

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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.