Home / 1,072,920.96-1,480,015.17-669,813.12

Finding the Fourth Proportional to 1,072,920.96, 1,480,015.17 and 669,813.12

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Solution

The fourth proportional to 1,072,920.96, 1,480,015.17 and 669,813.12 is: 923,957.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,920.96 : 1,480,015.17 = 669,813.12 : x
  2. Step 2: Convert to fraction form
    1,072,920.96/1,480,015.17 = 669,813.12/x
  3. Step 3: Cross multiply
    1,072,920.96x = 1,480,015.17 × 669,813.12
  4. Step 4: Simplify right side
    1,072,920.96x = 991,333,578,665.03
  5. Step 5: Solve for x
    x = 991,333,578,665.03/1,072,920.96
  6. Step 6: Final answer
    x = 923,957.70

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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.