Home / 385,319.25-531,389.33-330,854.33

Finding the Fourth Proportional to 385,319.25, 531,389.33 and 330,854.33

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Solution

The fourth proportional to 385,319.25, 531,389.33 and 330,854.33 is: 456,277.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,319.25 : 531,389.33 = 330,854.33 : x
  2. Step 2: Convert to fraction form
    385,319.25/531,389.33 = 330,854.33/x
  3. Step 3: Cross multiply
    385,319.25x = 531,389.33 × 330,854.33
  4. Step 4: Simplify right side
    385,319.25x = 175,812,456,435.08
  5. Step 5: Solve for x
    x = 175,812,456,435.08/385,319.25
  6. Step 6: Final answer
    x = 456,277.38

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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.