Home / 1,611,872.40-2,417,117.40-812,845.20

Finding the Fourth Proportional to 1,611,872.40, 2,417,117.40 and 812,845.20

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Solution

The fourth proportional to 1,611,872.40, 2,417,117.40 and 812,845.20 is: 1,218,919.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,611,872.40 : 2,417,117.40 = 812,845.20 : x
  2. Step 2: Convert to fraction form
    1,611,872.40/2,417,117.40 = 812,845.20/x
  3. Step 3: Cross multiply
    1,611,872.40x = 2,417,117.40 × 812,845.20
  4. Step 4: Simplify right side
    1,611,872.40x = 1,964,742,276,426.48
  5. Step 5: Solve for x
    x = 1,964,742,276,426.48/1,611,872.40
  6. Step 6: Final answer
    x = 1,218,919.24

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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.