Home / 763,870.44-1,054,148.66-419,700.84

Finding the Fourth Proportional to 763,870.44, 1,054,148.66 and 419,700.84

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Solution

The fourth proportional to 763,870.44, 1,054,148.66 and 419,700.84 is: 579,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,870.44 : 1,054,148.66 = 419,700.84 : x
  2. Step 2: Convert to fraction form
    763,870.44/1,054,148.66 = 419,700.84/x
  3. Step 3: Cross multiply
    763,870.44x = 1,054,148.66 × 419,700.84
  4. Step 4: Simplify right side
    763,870.44x = 442,427,078,086.87
  5. Step 5: Solve for x
    x = 442,427,078,086.87/763,870.44
  6. Step 6: Final answer
    x = 579,191.25

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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.