Home / 1,208,457.20-1,812,628.20-409,660.40

Finding the Fourth Proportional to 1,208,457.20, 1,812,628.20 and 409,660.40

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Solution

The fourth proportional to 1,208,457.20, 1,812,628.20 and 409,660.40 is: 614,471.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,457.20 : 1,812,628.20 = 409,660.40 : x
  2. Step 2: Convert to fraction form
    1,208,457.20/1,812,628.20 = 409,660.40/x
  3. Step 3: Cross multiply
    1,208,457.20x = 1,812,628.20 × 409,660.40
  4. Step 4: Simplify right side
    1,208,457.20x = 742,561,993,463.28
  5. Step 5: Solve for x
    x = 742,561,993,463.28/1,208,457.20
  6. Step 6: Final answer
    x = 614,471.07

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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.