Home / 1,299,594.07-1,792,890.66-870,012.59

Finding the Fourth Proportional to 1,299,594.07, 1,792,890.66 and 870,012.59

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Solution

The fourth proportional to 1,299,594.07, 1,792,890.66 and 870,012.59 is: 1,200,249.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,594.07 : 1,792,890.66 = 870,012.59 : x
  2. Step 2: Convert to fraction form
    1,299,594.07/1,792,890.66 = 870,012.59/x
  3. Step 3: Cross multiply
    1,299,594.07x = 1,792,890.66 × 870,012.59
  4. Step 4: Simplify right side
    1,299,594.07x = 1,559,837,442,343.35
  5. Step 5: Solve for x
    x = 1,559,837,442,343.35/1,299,594.07
  6. Step 6: Final answer
    x = 1,200,249.74

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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.