Home / 905,007.40-1,358,276.55-372,910.30

Finding the Fourth Proportional to 905,007.40, 1,358,276.55 and 372,910.30

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Solution

The fourth proportional to 905,007.40, 1,358,276.55 and 372,910.30 is: 559,680.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,007.40 : 1,358,276.55 = 372,910.30 : x
  2. Step 2: Convert to fraction form
    905,007.40/1,358,276.55 = 372,910.30/x
  3. Step 3: Cross multiply
    905,007.40x = 1,358,276.55 × 372,910.30
  4. Step 4: Simplify right side
    905,007.40x = 506,515,315,743.47
  5. Step 5: Solve for x
    x = 506,515,315,743.47/905,007.40
  6. Step 6: Final answer
    x = 559,680.86

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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.