Home / 385,698.33-531,769.08-299,511.09

Finding the Fourth Proportional to 385,698.33, 531,769.08 and 299,511.09

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Solution

The fourth proportional to 385,698.33, 531,769.08 and 299,511.09 is: 412,941.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,698.33 : 531,769.08 = 299,511.09 : x
  2. Step 2: Convert to fraction form
    385,698.33/531,769.08 = 299,511.09/x
  3. Step 3: Cross multiply
    385,698.33x = 531,769.08 × 299,511.09
  4. Step 4: Simplify right side
    385,698.33x = 159,270,736,779.10
  5. Step 5: Solve for x
    x = 159,270,736,779.10/385,698.33
  6. Step 6: Final answer
    x = 412,941.21

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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.