Home / 1,421,704.56-1,962,005.04-777,168.48

Finding the Fourth Proportional to 1,421,704.56, 1,962,005.04 and 777,168.48

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Solution

The fourth proportional to 1,421,704.56, 1,962,005.04 and 777,168.48 is: 1,072,521.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,704.56 : 1,962,005.04 = 777,168.48 : x
  2. Step 2: Convert to fraction form
    1,421,704.56/1,962,005.04 = 777,168.48/x
  3. Step 3: Cross multiply
    1,421,704.56x = 1,962,005.04 × 777,168.48
  4. Step 4: Simplify right side
    1,421,704.56x = 1,524,808,474,689.14
  5. Step 5: Solve for x
    x = 1,524,808,474,689.14/1,421,704.56
  6. Step 6: Final answer
    x = 1,072,521.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.