Home / 2,117,018.73-2,921,428.96-1,245,904.68

Finding the Fourth Proportional to 2,117,018.73, 2,921,428.96 and 1,245,904.68

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Solution

The fourth proportional to 2,117,018.73, 2,921,428.96 and 1,245,904.68 is: 1,719,314.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,117,018.73 : 2,921,428.96 = 1,245,904.68 : x
  2. Step 2: Convert to fraction form
    2,117,018.73/2,921,428.96 = 1,245,904.68/x
  3. Step 3: Cross multiply
    2,117,018.73x = 2,921,428.96 × 1,245,904.68
  4. Step 4: Simplify right side
    2,117,018.73x = 3,639,822,013,551.53
  5. Step 5: Solve for x
    x = 3,639,822,013,551.53/2,117,018.73
  6. Step 6: Final answer
    x = 1,719,314.98

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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.