Home / 891,131.40-1,336,697.10-859,638.60

Finding the Fourth Proportional to 891,131.40, 1,336,697.10 and 859,638.60

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Solution

The fourth proportional to 891,131.40, 1,336,697.10 and 859,638.60 is: 1,289,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,131.40 : 1,336,697.10 = 859,638.60 : x
  2. Step 2: Convert to fraction form
    891,131.40/1,336,697.10 = 859,638.60/x
  3. Step 3: Cross multiply
    891,131.40x = 1,336,697.10 × 859,638.60
  4. Step 4: Simplify right side
    891,131.40x = 1,149,076,423,668.06
  5. Step 5: Solve for x
    x = 1,149,076,423,668.06/891,131.40
  6. Step 6: Final answer
    x = 1,289,457.90

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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.