Home / 3,113,643.81-4,670,118.21-839,394.66

Finding the Fourth Proportional to 3,113,643.81, 4,670,118.21 and 839,394.66

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Solution

The fourth proportional to 3,113,643.81, 4,670,118.21 and 839,394.66 is: 1,258,998.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113,643.81 : 4,670,118.21 = 839,394.66 : x
  2. Step 2: Convert to fraction form
    3,113,643.81/4,670,118.21 = 839,394.66/x
  3. Step 3: Cross multiply
    3,113,643.81x = 4,670,118.21 × 839,394.66
  4. Step 4: Simplify right side
    3,113,643.81x = 3,920,072,287,042.76
  5. Step 5: Solve for x
    x = 3,920,072,287,042.76/3,113,643.81
  6. Step 6: Final answer
    x = 1,258,998.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.