Home / 1,213,004.70-1,819,507.05-740,612.70

Finding the Fourth Proportional to 1,213,004.70, 1,819,507.05 and 740,612.70

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Solution

The fourth proportional to 1,213,004.70, 1,819,507.05 and 740,612.70 is: 1,110,919.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,004.70 : 1,819,507.05 = 740,612.70 : x
  2. Step 2: Convert to fraction form
    1,213,004.70/1,819,507.05 = 740,612.70/x
  3. Step 3: Cross multiply
    1,213,004.70x = 1,819,507.05 × 740,612.70
  4. Step 4: Simplify right side
    1,213,004.70x = 1,347,550,028,969.53
  5. Step 5: Solve for x
    x = 1,347,550,028,969.53/1,213,004.70
  6. Step 6: Final answer
    x = 1,110,919.05

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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.