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Finding the Fourth Proportional to 553,820.06, 764,413.87 and 360,708.97

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Solution

The fourth proportional to 553,820.06, 764,413.87 and 360,708.97 is: 497,870.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,820.06 : 764,413.87 = 360,708.97 : x
  2. Step 2: Convert to fraction form
    553,820.06/764,413.87 = 360,708.97/x
  3. Step 3: Cross multiply
    553,820.06x = 764,413.87 × 360,708.97
  4. Step 4: Simplify right side
    553,820.06x = 275,730,934,075.80
  5. Step 5: Solve for x
    x = 275,730,934,075.80/553,820.06
  6. Step 6: Final answer
    x = 497,870.98

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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.