Home / 876,691.60-1,315,037.40-811,081.60

Finding the Fourth Proportional to 876,691.60, 1,315,037.40 and 811,081.60

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Solution

The fourth proportional to 876,691.60, 1,315,037.40 and 811,081.60 is: 1,216,622.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,691.60 : 1,315,037.40 = 811,081.60 : x
  2. Step 2: Convert to fraction form
    876,691.60/1,315,037.40 = 811,081.60/x
  3. Step 3: Cross multiply
    876,691.60x = 1,315,037.40 × 811,081.60
  4. Step 4: Simplify right side
    876,691.60x = 1,066,602,638,451.84
  5. Step 5: Solve for x
    x = 1,066,602,638,451.84/876,691.60
  6. Step 6: Final answer
    x = 1,216,622.40

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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.