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Finding the Fourth Proportional to 911,004.60, 1,366,506.90 and 491,100.60

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Solution

The fourth proportional to 911,004.60, 1,366,506.90 and 491,100.60 is: 736,650.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,004.60 : 1,366,506.90 = 491,100.60 : x
  2. Step 2: Convert to fraction form
    911,004.60/1,366,506.90 = 491,100.60/x
  3. Step 3: Cross multiply
    911,004.60x = 1,366,506.90 × 491,100.60
  4. Step 4: Simplify right side
    911,004.60x = 671,092,358,494.14
  5. Step 5: Solve for x
    x = 671,092,358,494.14/911,004.60
  6. Step 6: Final answer
    x = 736,650.90

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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.