Home / 811,404.60-1,214,774.10-727,423.80

Finding the Fourth Proportional to 811,404.60, 1,214,774.10 and 727,423.80

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Solution

The fourth proportional to 811,404.60, 1,214,774.10 and 727,423.80 is: 1,089,044.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,404.60 : 1,214,774.10 = 727,423.80 : x
  2. Step 2: Convert to fraction form
    811,404.60/1,214,774.10 = 727,423.80/x
  3. Step 3: Cross multiply
    811,404.60x = 1,214,774.10 × 727,423.80
  4. Step 4: Simplify right side
    811,404.60x = 883,655,591,963.58
  5. Step 5: Solve for x
    x = 883,655,591,963.58/811,404.60
  6. Step 6: Final answer
    x = 1,089,044.35

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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.