Home / 1,129,413.52-1,558,615.80-620,117.92

Finding the Fourth Proportional to 1,129,413.52, 1,558,615.80 and 620,117.92

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Solution

The fourth proportional to 1,129,413.52, 1,558,615.80 and 620,117.92 is: 855,776.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,413.52 : 1,558,615.80 = 620,117.92 : x
  2. Step 2: Convert to fraction form
    1,129,413.52/1,558,615.80 = 620,117.92/x
  3. Step 3: Cross multiply
    1,129,413.52x = 1,558,615.80 × 620,117.92
  4. Step 4: Simplify right side
    1,129,413.52x = 966,525,587,975.14
  5. Step 5: Solve for x
    x = 966,525,587,975.14/1,129,413.52
  6. Step 6: Final answer
    x = 855,776.53

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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.