Home / 760,728-1,049,837.45-421,196.25

Finding the Fourth Proportional to 760,728, 1,049,837.45 and 421,196.25

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Solution

The fourth proportional to 760,728, 1,049,837.45 and 421,196.25 is: 581,268.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,728 : 1,049,837.45 = 421,196.25 : x
  2. Step 2: Convert to fraction form
    760,728/1,049,837.45 = 421,196.25/x
  3. Step 3: Cross multiply
    760,728x = 1,049,837.45 × 421,196.25
  4. Step 4: Simplify right side
    760,728x = 442,187,594,943.58
  5. Step 5: Solve for x
    x = 442,187,594,943.58/760,728
  6. Step 6: Final answer
    x = 581,268.99

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.