Home / 1,299,603.30-1,792,903.38-870,021.82

Finding the Fourth Proportional to 1,299,603.30, 1,792,903.38 and 870,021.82

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Solution

The fourth proportional to 1,299,603.30, 1,792,903.38 and 870,021.82 is: 1,200,262.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,603.30 : 1,792,903.38 = 870,021.82 : x
  2. Step 2: Convert to fraction form
    1,299,603.30/1,792,903.38 = 870,021.82/x
  3. Step 3: Cross multiply
    1,299,603.30x = 1,792,903.38 × 870,021.82
  4. Step 4: Simplify right side
    1,299,603.30x = 1,559,865,060,730.30
  5. Step 5: Solve for x
    x = 1,559,865,060,730.30/1,299,603.30
  6. Step 6: Final answer
    x = 1,200,262.47

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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.