Home / 1,430,695.60-2,146,375.76-419,776.72

Finding the Fourth Proportional to 1,430,695.60, 2,146,375.76 and 419,776.72

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Solution

The fourth proportional to 1,430,695.60, 2,146,375.76 and 419,776.72 is: 629,762.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430,695.60 : 2,146,375.76 = 419,776.72 : x
  2. Step 2: Convert to fraction form
    1,430,695.60/2,146,375.76 = 419,776.72/x
  3. Step 3: Cross multiply
    1,430,695.60x = 2,146,375.76 × 419,776.72
  4. Step 4: Simplify right side
    1,430,695.60x = 900,998,576,420.31
  5. Step 5: Solve for x
    x = 900,998,576,420.31/1,430,695.60
  6. Step 6: Final answer
    x = 629,762.60

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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.