Home / 3,113,644.81-4,670,119.71-839,395.66

Finding the Fourth Proportional to 3,113,644.81, 4,670,119.71 and 839,395.66

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Solution

The fourth proportional to 3,113,644.81, 4,670,119.71 and 839,395.66 is: 1,258,999.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113,644.81 : 4,670,119.71 = 839,395.66 : x
  2. Step 2: Convert to fraction form
    3,113,644.81/4,670,119.71 = 839,395.66/x
  3. Step 3: Cross multiply
    3,113,644.81x = 4,670,119.71 × 839,395.66
  4. Step 4: Simplify right side
    3,113,644.81x = 3,920,078,216,254.46
  5. Step 5: Solve for x
    x = 3,920,078,216,254.46/3,113,644.81
  6. Step 6: Final answer
    x = 1,258,999.81

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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.