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Finding the Fourth Proportional to 528,767.56, 729,700.16 and 302,413.06

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Solution

The fourth proportional to 528,767.56, 729,700.16 and 302,413.06 is: 417,330.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,767.56 : 729,700.16 = 302,413.06 : x
  2. Step 2: Convert to fraction form
    528,767.56/729,700.16 = 302,413.06/x
  3. Step 3: Cross multiply
    528,767.56x = 729,700.16 × 302,413.06
  4. Step 4: Simplify right side
    528,767.56x = 220,670,858,268.09
  5. Step 5: Solve for x
    x = 220,670,858,268.09/528,767.56
  6. Step 6: Final answer
    x = 417,330.55

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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.