Home / 742,779.06-1,114,242.43-269,501.33

Finding the Fourth Proportional to 742,779.06, 1,114,242.43 and 269,501.33

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Solution

The fourth proportional to 742,779.06, 1,114,242.43 and 269,501.33 is: 404,278.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,779.06 : 1,114,242.43 = 269,501.33 : x
  2. Step 2: Convert to fraction form
    742,779.06/1,114,242.43 = 269,501.33/x
  3. Step 3: Cross multiply
    742,779.06x = 1,114,242.43 × 269,501.33
  4. Step 4: Simplify right side
    742,779.06x = 300,289,813,176.99
  5. Step 5: Solve for x
    x = 300,289,813,176.99/742,779.06
  6. Step 6: Final answer
    x = 404,278.78

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.