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Finding the Fourth Proportional to 563,057.68, 777,019.80 and 308,413.12

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Solution

The fourth proportional to 563,057.68, 777,019.80 and 308,413.12 is: 425,610.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,057.68 : 777,019.80 = 308,413.12 : x
  2. Step 2: Convert to fraction form
    563,057.68/777,019.80 = 308,413.12/x
  3. Step 3: Cross multiply
    563,057.68x = 777,019.80 × 308,413.12
  4. Step 4: Simplify right side
    563,057.68x = 239,643,100,819.78
  5. Step 5: Solve for x
    x = 239,643,100,819.78/563,057.68
  6. Step 6: Final answer
    x = 425,610.22

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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.