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Finding the Fourth Proportional to 564,536.09, 779,057.84 and 306,413.04

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Solution

The fourth proportional to 564,536.09, 779,057.84 and 306,413.04 is: 422,848.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,536.09 : 779,057.84 = 306,413.04 : x
  2. Step 2: Convert to fraction form
    564,536.09/779,057.84 = 306,413.04/x
  3. Step 3: Cross multiply
    564,536.09x = 779,057.84 × 306,413.04
  4. Step 4: Simplify right side
    564,536.09x = 238,713,479,558.17
  5. Step 5: Solve for x
    x = 238,713,479,558.17/564,536.09
  6. Step 6: Final answer
    x = 422,848.93

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1.5x scale

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.