Home / 1,319,891.13-1,979,771.04-722,020.05

Finding the Fourth Proportional to 1,319,891.13, 1,979,771.04 and 722,020.05

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Solution

The fourth proportional to 1,319,891.13, 1,979,771.04 and 722,020.05 is: 1,082,994.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,891.13 : 1,979,771.04 = 722,020.05 : x
  2. Step 2: Convert to fraction form
    1,319,891.13/1,979,771.04 = 722,020.05/x
  3. Step 3: Cross multiply
    1,319,891.13x = 1,979,771.04 × 722,020.05
  4. Step 4: Simplify right side
    1,319,891.13x = 1,429,434,385,289.35
  5. Step 5: Solve for x
    x = 1,429,434,385,289.35/1,319,891.13
  6. Step 6: Final answer
    x = 1,082,994.16

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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.