Home / 1,386,709.20-2,080,258.20-545,065.20

Finding the Fourth Proportional to 1,386,709.20, 2,080,258.20 and 545,065.20

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Solution

The fourth proportional to 1,386,709.20, 2,080,258.20 and 545,065.20 is: 817,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,709.20 : 2,080,258.20 = 545,065.20 : x
  2. Step 2: Convert to fraction form
    1,386,709.20/2,080,258.20 = 545,065.20/x
  3. Step 3: Cross multiply
    1,386,709.20x = 2,080,258.20 × 545,065.20
  4. Step 4: Simplify right side
    1,386,709.20x = 1,133,876,351,834.64
  5. Step 5: Solve for x
    x = 1,133,876,351,834.64/1,386,709.20
  6. Step 6: Final answer
    x = 817,674.21

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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.