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Finding the Fourth Proportional to 999,995.60, 1,499,993.40 and 401,049.20

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Solution

The fourth proportional to 999,995.60, 1,499,993.40 and 401,049.20 is: 601,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,995.60 : 1,499,993.40 = 401,049.20 : x
  2. Step 2: Convert to fraction form
    999,995.60/1,499,993.40 = 401,049.20/x
  3. Step 3: Cross multiply
    999,995.60x = 1,499,993.40 × 401,049.20
  4. Step 4: Simplify right side
    999,995.60x = 601,571,153,075.28
  5. Step 5: Solve for x
    x = 601,571,153,075.28/999,995.60
  6. Step 6: Final answer
    x = 601,573.80

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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.