Home / 1,353,722.80-1,867,900.62-772,680.64

Finding the Fourth Proportional to 1,353,722.80, 1,867,900.62 and 772,680.64

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Solution

The fourth proportional to 1,353,722.80, 1,867,900.62 and 772,680.64 is: 1,066,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,722.80 : 1,867,900.62 = 772,680.64 : x
  2. Step 2: Convert to fraction form
    1,353,722.80/1,867,900.62 = 772,680.64/x
  3. Step 3: Cross multiply
    1,353,722.80x = 1,867,900.62 × 772,680.64
  4. Step 4: Simplify right side
    1,353,722.80x = 1,443,290,646,518.00
  5. Step 5: Solve for x
    x = 1,443,290,646,518.00/1,353,722.80
  6. Step 6: Final answer
    x = 1,066,164.10

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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.