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Finding the Fourth Proportional to 824,725.52, 1,138,149 and 786,934.16

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Solution

The fourth proportional to 824,725.52, 1,138,149 and 786,934.16 is: 1,085,995.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,725.52 : 1,138,149 = 786,934.16 : x
  2. Step 2: Convert to fraction form
    824,725.52/1,138,149 = 786,934.16/x
  3. Step 3: Cross multiply
    824,725.52x = 1,138,149 × 786,934.16
  4. Step 4: Simplify right side
    824,725.52x = 895,648,327,269.84
  5. Step 5: Solve for x
    x = 895,648,327,269.84/824,725.52
  6. Step 6: Final answer
    x = 1,085,995.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.