Home / 1,393,664.40-2,091,808.80-862,223.40

Finding the Fourth Proportional to 1,393,664.40, 2,091,808.80 and 862,223.40

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Solution

The fourth proportional to 1,393,664.40, 2,091,808.80 and 862,223.40 is: 1,294,146.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,664.40 : 2,091,808.80 = 862,223.40 : x
  2. Step 2: Convert to fraction form
    1,393,664.40/2,091,808.80 = 862,223.40/x
  3. Step 3: Cross multiply
    1,393,664.40x = 2,091,808.80 × 862,223.40
  4. Step 4: Simplify right side
    1,393,664.40x = 1,803,606,495,685.92
  5. Step 5: Solve for x
    x = 1,803,606,495,685.92/1,393,664.40
  6. Step 6: Final answer
    x = 1,294,146.92

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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.