Home / 1,265,873.28-1,898,809.86-379,409.28

Finding the Fourth Proportional to 1,265,873.28, 1,898,809.86 and 379,409.28

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Solution

The fourth proportional to 1,265,873.28, 1,898,809.86 and 379,409.28 is: 569,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,873.28 : 1,898,809.86 = 379,409.28 : x
  2. Step 2: Convert to fraction form
    1,265,873.28/1,898,809.86 = 379,409.28/x
  3. Step 3: Cross multiply
    1,265,873.28x = 1,898,809.86 × 379,409.28
  4. Step 4: Simplify right side
    1,265,873.28x = 720,426,081,839.50
  5. Step 5: Solve for x
    x = 720,426,081,839.50/1,265,873.28
  6. Step 6: Final answer
    x = 569,113.90

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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.