Home / 1,439,698.76-1,986,800.12-828,155.24

Finding the Fourth Proportional to 1,439,698.76, 1,986,800.12 and 828,155.24

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Solution

The fourth proportional to 1,439,698.76, 1,986,800.12 and 828,155.24 is: 1,142,863.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,698.76 : 1,986,800.12 = 828,155.24 : x
  2. Step 2: Convert to fraction form
    1,439,698.76/1,986,800.12 = 828,155.24/x
  3. Step 3: Cross multiply
    1,439,698.76x = 1,986,800.12 × 828,155.24
  4. Step 4: Simplify right side
    1,439,698.76x = 1,645,378,930,210.63
  5. Step 5: Solve for x
    x = 1,645,378,930,210.63/1,439,698.76
  6. Step 6: Final answer
    x = 1,142,863.34

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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.