Home / 1,271,972.80-1,755,237.60-699,000.64

Finding the Fourth Proportional to 1,271,972.80, 1,755,237.60 and 699,000.64

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Solution

The fourth proportional to 1,271,972.80, 1,755,237.60 and 699,000.64 is: 964,574.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,972.80 : 1,755,237.60 = 699,000.64 : x
  2. Step 2: Convert to fraction form
    1,271,972.80/1,755,237.60 = 699,000.64/x
  3. Step 3: Cross multiply
    1,271,972.80x = 1,755,237.60 × 699,000.64
  4. Step 4: Simplify right side
    1,271,972.80x = 1,226,912,205,752.06
  5. Step 5: Solve for x
    x = 1,226,912,205,752.06/1,271,972.80
  6. Step 6: Final answer
    x = 964,574.25

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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.