Home / 760,694.18-1,049,828.39-421,162.43

Finding the Fourth Proportional to 760,694.18, 1,049,828.39 and 421,162.43

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Solution

The fourth proportional to 760,694.18, 1,049,828.39 and 421,162.43 is: 581,243.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,694.18 : 1,049,828.39 = 421,162.43 : x
  2. Step 2: Convert to fraction form
    760,694.18/1,049,828.39 = 421,162.43/x
  3. Step 3: Cross multiply
    760,694.18x = 1,049,828.39 × 421,162.43
  4. Step 4: Simplify right side
    760,694.18x = 442,148,268,460.43
  5. Step 5: Solve for x
    x = 442,148,268,460.43/760,694.18
  6. Step 6: Final answer
    x = 581,243.14

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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.