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Finding the Fourth Proportional to 886,842.90, 1,330,264.35 and 512,673.30

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Solution

The fourth proportional to 886,842.90, 1,330,264.35 and 512,673.30 is: 769,009.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,842.90 : 1,330,264.35 = 512,673.30 : x
  2. Step 2: Convert to fraction form
    886,842.90/1,330,264.35 = 512,673.30/x
  3. Step 3: Cross multiply
    886,842.90x = 1,330,264.35 × 512,673.30
  4. Step 4: Simplify right side
    886,842.90x = 681,991,014,186.86
  5. Step 5: Solve for x
    x = 681,991,014,186.86/886,842.90
  6. Step 6: Final answer
    x = 769,009.95

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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.