Home / 1,298,743.48-1,792,110.72-717,888.16

Finding the Fourth Proportional to 1,298,743.48, 1,792,110.72 and 717,888.16

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Solution

The fourth proportional to 1,298,743.48, 1,792,110.72 and 717,888.16 is: 990,599.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,743.48 : 1,792,110.72 = 717,888.16 : x
  2. Step 2: Convert to fraction form
    1,298,743.48/1,792,110.72 = 717,888.16/x
  3. Step 3: Cross multiply
    1,298,743.48x = 1,792,110.72 × 717,888.16
  4. Step 4: Simplify right side
    1,298,743.48x = 1,286,535,058,336.52
  5. Step 5: Solve for x
    x = 1,286,535,058,336.52/1,298,743.48
  6. Step 6: Final answer
    x = 990,599.82

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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.