Home / 1,620,544.32-2,430,817.56-422,463.60

Finding the Fourth Proportional to 1,620,544.32, 2,430,817.56 and 422,463.60

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Solution

The fourth proportional to 1,620,544.32, 2,430,817.56 and 422,463.60 is: 633,695.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,544.32 : 2,430,817.56 = 422,463.60 : x
  2. Step 2: Convert to fraction form
    1,620,544.32/2,430,817.56 = 422,463.60/x
  3. Step 3: Cross multiply
    1,620,544.32x = 2,430,817.56 × 422,463.60
  4. Step 4: Simplify right side
    1,620,544.32x = 1,026,931,937,340.82
  5. Step 5: Solve for x
    x = 1,026,931,937,340.82/1,620,544.32
  6. Step 6: Final answer
    x = 633,695.68

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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.