Home / 385,341.14-531,419.49-330,876.29

Finding the Fourth Proportional to 385,341.14, 531,419.49 and 330,876.29

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Solution

The fourth proportional to 385,341.14, 531,419.49 and 330,876.29 is: 456,307.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,341.14 : 531,419.49 = 330,876.29 : x
  2. Step 2: Convert to fraction form
    385,341.14/531,419.49 = 330,876.29/x
  3. Step 3: Cross multiply
    385,341.14x = 531,419.49 × 330,876.29
  4. Step 4: Simplify right side
    385,341.14x = 175,834,106,627.80
  5. Step 5: Solve for x
    x = 175,834,106,627.80/385,341.14
  6. Step 6: Final answer
    x = 456,307.65

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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.