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Finding the Fourth Proportional to 866,830.10, 1,300,245.15 and 600,890.90

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Solution

The fourth proportional to 866,830.10, 1,300,245.15 and 600,890.90 is: 901,336.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,830.10 : 1,300,245.15 = 600,890.90 : x
  2. Step 2: Convert to fraction form
    866,830.10/1,300,245.15 = 600,890.90/x
  3. Step 3: Cross multiply
    866,830.10x = 1,300,245.15 × 600,890.90
  4. Step 4: Simplify right side
    866,830.10x = 781,305,478,404.14
  5. Step 5: Solve for x
    x = 781,305,478,404.14/866,830.10
  6. Step 6: Final answer
    x = 901,336.35

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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.