Home / 1,409,228.20-2,113,842.30-905,343.40

Finding the Fourth Proportional to 1,409,228.20, 2,113,842.30 and 905,343.40

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Solution

The fourth proportional to 1,409,228.20, 2,113,842.30 and 905,343.40 is: 1,358,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,228.20 : 2,113,842.30 = 905,343.40 : x
  2. Step 2: Convert to fraction form
    1,409,228.20/2,113,842.30 = 905,343.40/x
  3. Step 3: Cross multiply
    1,409,228.20x = 2,113,842.30 × 905,343.40
  4. Step 4: Simplify right side
    1,409,228.20x = 1,913,753,174,945.82
  5. Step 5: Solve for x
    x = 1,913,753,174,945.82/1,409,228.20
  6. Step 6: Final answer
    x = 1,358,015.10

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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.