Home / 905,341.50-1,358,222.31-265,619.43

Finding the Fourth Proportional to 905,341.50, 1,358,222.31 and 265,619.43

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Solution

The fourth proportional to 905,341.50, 1,358,222.31 and 265,619.43 is: 398,490.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,341.50 : 1,358,222.31 = 265,619.43 : x
  2. Step 2: Convert to fraction form
    905,341.50/1,358,222.31 = 265,619.43/x
  3. Step 3: Cross multiply
    905,341.50x = 1,358,222.31 × 265,619.43
  4. Step 4: Simplify right side
    905,341.50x = 360,770,235,795.48
  5. Step 5: Solve for x
    x = 360,770,235,795.48/905,341.50
  6. Step 6: Final answer
    x = 398,490.77

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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.