Home / 1,430,810.20-2,146,215.30-433,408.60

Finding the Fourth Proportional to 1,430,810.20, 2,146,215.30 and 433,408.60

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Solution

The fourth proportional to 1,430,810.20, 2,146,215.30 and 433,408.60 is: 650,112.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,810.20 : 2,146,215.30 = 433,408.60 : x
  2. Step 2: Convert to fraction form
    1,430,810.20/2,146,215.30 = 433,408.60/x
  3. Step 3: Cross multiply
    1,430,810.20x = 2,146,215.30 × 433,408.60
  4. Step 4: Simplify right side
    1,430,810.20x = 930,188,168,471.58
  5. Step 5: Solve for x
    x = 930,188,168,471.58/1,430,810.20
  6. Step 6: Final answer
    x = 650,112.90

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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.