Home / 905,436.63-1,358,155.20-336,743.43

Finding the Fourth Proportional to 905,436.63, 1,358,155.20 and 336,743.43

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Solution

The fourth proportional to 905,436.63, 1,358,155.20 and 336,743.43 is: 505,115.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,436.63 : 1,358,155.20 = 336,743.43 : x
  2. Step 2: Convert to fraction form
    905,436.63/1,358,155.20 = 336,743.43/x
  3. Step 3: Cross multiply
    905,436.63x = 1,358,155.20 × 336,743.43
  4. Step 4: Simplify right side
    905,436.63x = 457,349,834,795.86
  5. Step 5: Solve for x
    x = 457,349,834,795.86/905,436.63
  6. Step 6: Final answer
    x = 505,115.23

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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.