Home / 872,495.20-1,204,022.64-570,682.72

Finding the Fourth Proportional to 872,495.20, 1,204,022.64 and 570,682.72

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Solution

The fourth proportional to 872,495.20, 1,204,022.64 and 570,682.72 is: 787,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,495.20 : 1,204,022.64 = 570,682.72 : x
  2. Step 2: Convert to fraction form
    872,495.20/1,204,022.64 = 570,682.72/x
  3. Step 3: Cross multiply
    872,495.20x = 1,204,022.64 × 570,682.72
  4. Step 4: Simplify right side
    872,495.20x = 687,114,915,136.78
  5. Step 5: Solve for x
    x = 687,114,915,136.78/872,495.20
  6. Step 6: Final answer
    x = 787,528.59

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Double scale
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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.