Home / 843,036.85-1,264,048.81-387,057.47

Finding the Fourth Proportional to 843,036.85, 1,264,048.81 and 387,057.47

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Solution

The fourth proportional to 843,036.85, 1,264,048.81 and 387,057.47 is: 580,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    843,036.85 : 1,264,048.81 = 387,057.47 : x
  2. Step 2: Convert to fraction form
    843,036.85/1,264,048.81 = 387,057.47/x
  3. Step 3: Cross multiply
    843,036.85x = 1,264,048.81 × 387,057.47
  4. Step 4: Simplify right side
    843,036.85x = 489,259,528,034.87
  5. Step 5: Solve for x
    x = 489,259,528,034.87/843,036.85
  6. Step 6: Final answer
    x = 580,353.67

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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.