Home / 1,197,643.20-1,796,714.40-399,172.80

Finding the Fourth Proportional to 1,197,643.20, 1,796,714.40 and 399,172.80

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Solution

The fourth proportional to 1,197,643.20, 1,796,714.40 and 399,172.80 is: 598,842.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,197,643.20 : 1,796,714.40 = 399,172.80 : x
  2. Step 2: Convert to fraction form
    1,197,643.20/1,796,714.40 = 399,172.80/x
  3. Step 3: Cross multiply
    1,197,643.20x = 1,796,714.40 × 399,172.80
  4. Step 4: Simplify right side
    1,197,643.20x = 717,199,517,848.32
  5. Step 5: Solve for x
    x = 717,199,517,848.32/1,197,643.20
  6. Step 6: Final answer
    x = 598,842.39

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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.