Home / 1,870,679.28-2,579,815.80-1,225,865.28

Finding the Fourth Proportional to 1,870,679.28, 2,579,815.80 and 1,225,865.28

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Solution

The fourth proportional to 1,870,679.28, 2,579,815.80 and 1,225,865.28 is: 1,690,565.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,679.28 : 2,579,815.80 = 1,225,865.28 : x
  2. Step 2: Convert to fraction form
    1,870,679.28/2,579,815.80 = 1,225,865.28/x
  3. Step 3: Cross multiply
    1,870,679.28x = 2,579,815.80 × 1,225,865.28
  4. Step 4: Simplify right side
    1,870,679.28x = 3,162,506,618,015.42
  5. Step 5: Solve for x
    x = 3,162,506,618,015.42/1,870,679.28
  6. Step 6: Final answer
    x = 1,690,565.91

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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.