Home / 939,609.20-1,409,831.40-379,737.20

Finding the Fourth Proportional to 939,609.20, 1,409,831.40 and 379,737.20

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Solution

The fourth proportional to 939,609.20, 1,409,831.40 and 379,737.20 is: 569,774.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,609.20 : 1,409,831.40 = 379,737.20 : x
  2. Step 2: Convert to fraction form
    939,609.20/1,409,831.40 = 379,737.20/x
  3. Step 3: Cross multiply
    939,609.20x = 1,409,831.40 × 379,737.20
  4. Step 4: Simplify right side
    939,609.20x = 535,365,428,308.08
  5. Step 5: Solve for x
    x = 535,365,428,308.08/939,609.20
  6. Step 6: Final answer
    x = 569,774.57

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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.