Home / 889,288.57-1,333,928.40-215,369.86

Finding the Fourth Proportional to 889,288.57, 1,333,928.40 and 215,369.86

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Solution

The fourth proportional to 889,288.57, 1,333,928.40 and 215,369.86 is: 323,053.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,288.57 : 1,333,928.40 = 215,369.86 : x
  2. Step 2: Convert to fraction form
    889,288.57/1,333,928.40 = 215,369.86/x
  3. Step 3: Cross multiply
    889,288.57x = 1,333,928.40 × 215,369.86
  4. Step 4: Simplify right side
    889,288.57x = 287,287,976,079.81
  5. Step 5: Solve for x
    x = 287,287,976,079.81/889,288.57
  6. Step 6: Final answer
    x = 323,053.71

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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.