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Finding the Fourth Proportional to 887,267.60, 1,330,901.40 and 414,000.80

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Solution

The fourth proportional to 887,267.60, 1,330,901.40 and 414,000.80 is: 621,001.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,267.60 : 1,330,901.40 = 414,000.80 : x
  2. Step 2: Convert to fraction form
    887,267.60/1,330,901.40 = 414,000.80/x
  3. Step 3: Cross multiply
    887,267.60x = 1,330,901.40 × 414,000.80
  4. Step 4: Simplify right side
    887,267.60x = 550,994,244,321.12
  5. Step 5: Solve for x
    x = 550,994,244,321.12/887,267.60
  6. Step 6: Final answer
    x = 621,001.20

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Double scale
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Similar ratio
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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.