Home / 2,139,206.60-3,207,254.70-876,384.20

Finding the Fourth Proportional to 2,139,206.60, 3,207,254.70 and 876,384.20

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Solution

The fourth proportional to 2,139,206.60, 3,207,254.70 and 876,384.20 is: 1,313,939.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,206.60 : 3,207,254.70 = 876,384.20 : x
  2. Step 2: Convert to fraction form
    2,139,206.60/3,207,254.70 = 876,384.20/x
  3. Step 3: Cross multiply
    2,139,206.60x = 3,207,254.70 × 876,384.20
  4. Step 4: Simplify right side
    2,139,206.60x = 2,810,787,344,455.74
  5. Step 5: Solve for x
    x = 2,810,787,344,455.74/2,139,206.60
  6. Step 6: Final answer
    x = 1,313,939.17

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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.