Home / 1,271,385.72-1,754,513.46-698,463

Finding the Fourth Proportional to 1,271,385.72, 1,754,513.46 and 698,463

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Solution

The fourth proportional to 1,271,385.72, 1,754,513.46 and 698,463 is: 963,879.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,385.72 : 1,754,513.46 = 698,463 : x
  2. Step 2: Convert to fraction form
    1,271,385.72/1,754,513.46 = 698,463/x
  3. Step 3: Cross multiply
    1,271,385.72x = 1,754,513.46 × 698,463
  4. Step 4: Simplify right side
    1,271,385.72x = 1,225,462,734,811.98
  5. Step 5: Solve for x
    x = 1,225,462,734,811.98/1,271,385.72
  6. Step 6: Final answer
    x = 963,879.58

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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.