Home / 1,207,320.71-1,665,739.25-723,709.40

Finding the Fourth Proportional to 1,207,320.71, 1,665,739.25 and 723,709.40

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Solution

The fourth proportional to 1,207,320.71, 1,665,739.25 and 723,709.40 is: 998,501.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,320.71 : 1,665,739.25 = 723,709.40 : x
  2. Step 2: Convert to fraction form
    1,207,320.71/1,665,739.25 = 723,709.40/x
  3. Step 3: Cross multiply
    1,207,320.71x = 1,665,739.25 × 723,709.40
  4. Step 4: Simplify right side
    1,207,320.71x = 1,205,511,141,226.71
  5. Step 5: Solve for x
    x = 1,205,511,141,226.71/1,207,320.71
  6. Step 6: Final answer
    x = 998,501.17

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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.