Home / 2,121,784.20-2,928,139.47-1,154,867.76

Finding the Fourth Proportional to 2,121,784.20, 2,928,139.47 and 1,154,867.76

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Solution

The fourth proportional to 2,121,784.20, 2,928,139.47 and 1,154,867.76 is: 1,593,759.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121,784.20 : 2,928,139.47 = 1,154,867.76 : x
  2. Step 2: Convert to fraction form
    2,121,784.20/2,928,139.47 = 1,154,867.76/x
  3. Step 3: Cross multiply
    2,121,784.20x = 2,928,139.47 × 1,154,867.76
  4. Step 4: Simplify right side
    2,121,784.20x = 3,381,613,870,686.49
  5. Step 5: Solve for x
    x = 3,381,613,870,686.49/2,121,784.20
  6. Step 6: Final answer
    x = 1,593,759.57

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1.5x scale

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.