Home / 870,423.44-1,200,876.40-568,792.40

Finding the Fourth Proportional to 870,423.44, 1,200,876.40 and 568,792.40

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Solution

The fourth proportional to 870,423.44, 1,200,876.40 and 568,792.40 is: 784,732.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,423.44 : 1,200,876.40 = 568,792.40 : x
  2. Step 2: Convert to fraction form
    870,423.44/1,200,876.40 = 568,792.40/x
  3. Step 3: Cross multiply
    870,423.44x = 1,200,876.40 × 568,792.40
  4. Step 4: Simplify right side
    870,423.44x = 683,049,369,659.36
  5. Step 5: Solve for x
    x = 683,049,369,659.36/870,423.44
  6. Step 6: Final answer
    x = 784,732.28

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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.