Home / 1,418,690.80-2,128,036.20-886,812.40

Finding the Fourth Proportional to 1,418,690.80, 2,128,036.20 and 886,812.40

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Solution

The fourth proportional to 1,418,690.80, 2,128,036.20 and 886,812.40 is: 1,330,218.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,690.80 : 2,128,036.20 = 886,812.40 : x
  2. Step 2: Convert to fraction form
    1,418,690.80/2,128,036.20 = 886,812.40/x
  3. Step 3: Cross multiply
    1,418,690.80x = 2,128,036.20 × 886,812.40
  4. Step 4: Simplify right side
    1,418,690.80x = 1,887,168,889,808.88
  5. Step 5: Solve for x
    x = 1,887,168,889,808.88/1,418,690.80
  6. Step 6: Final answer
    x = 1,330,218.60

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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.