Home / 767,804.15-1,152,413.06-388,988.42

Finding the Fourth Proportional to 767,804.15, 1,152,413.06 and 388,988.42

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Solution

The fourth proportional to 767,804.15, 1,152,413.06 and 388,988.42 is: 583,840.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,804.15 : 1,152,413.06 = 388,988.42 : x
  2. Step 2: Convert to fraction form
    767,804.15/1,152,413.06 = 388,988.42/x
  3. Step 3: Cross multiply
    767,804.15x = 1,152,413.06 × 388,988.42
  4. Step 4: Simplify right side
    767,804.15x = 448,275,327,689.76
  5. Step 5: Solve for x
    x = 448,275,327,689.76/767,804.15
  6. Step 6: Final answer
    x = 583,840.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.