Home / 1,521,674.64-2,099,974.28-842,611.12

Finding the Fourth Proportional to 1,521,674.64, 2,099,974.28 and 842,611.12

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Solution

The fourth proportional to 1,521,674.64, 2,099,974.28 and 842,611.12 is: 1,162,838.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,674.64 : 2,099,974.28 = 842,611.12 : x
  2. Step 2: Convert to fraction form
    1,521,674.64/2,099,974.28 = 842,611.12/x
  3. Step 3: Cross multiply
    1,521,674.64x = 2,099,974.28 × 842,611.12
  4. Step 4: Simplify right side
    1,521,674.64x = 1,769,461,680,041.99
  5. Step 5: Solve for x
    x = 1,769,461,680,041.99/1,521,674.64
  6. Step 6: Final answer
    x = 1,162,838.38

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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.