Home / 1,272,739.20-1,756,346.40-691,944

Finding the Fourth Proportional to 1,272,739.20, 1,756,346.40 and 691,944

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Solution

The fourth proportional to 1,272,739.20, 1,756,346.40 and 691,944 is: 954,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,739.20 : 1,756,346.40 = 691,944 : x
  2. Step 2: Convert to fraction form
    1,272,739.20/1,756,346.40 = 691,944/x
  3. Step 3: Cross multiply
    1,272,739.20x = 1,756,346.40 × 691,944
  4. Step 4: Simplify right side
    1,272,739.20x = 1,215,293,353,401.60
  5. Step 5: Solve for x
    x = 1,215,293,353,401.60/1,272,739.20
  6. Step 6: Final answer
    x = 954,864.40

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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.