Home / 385,342.14-531,420.87-330,877.29

Finding the Fourth Proportional to 385,342.14, 531,420.87 and 330,877.29

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Solution

The fourth proportional to 385,342.14, 531,420.87 and 330,877.29 is: 456,309.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,342.14 : 531,420.87 = 330,877.29 : x
  2. Step 2: Convert to fraction form
    385,342.14/531,420.87 = 330,877.29/x
  3. Step 3: Cross multiply
    385,342.14x = 531,420.87 × 330,877.29
  4. Step 4: Simplify right side
    385,342.14x = 175,835,097,315.04
  5. Step 5: Solve for x
    x = 175,835,097,315.04/385,342.14
  6. Step 6: Final answer
    x = 456,309.03

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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.