Home / 3,111,649-4,294,079.46-1,680,865

Finding the Fourth Proportional to 3,111,649, 4,294,079.46 and 1,680,865

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Solution

The fourth proportional to 3,111,649, 4,294,079.46 and 1,680,865 is: 2,319,595.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,649 : 4,294,079.46 = 1,680,865 : x
  2. Step 2: Convert to fraction form
    3,111,649/4,294,079.46 = 1,680,865/x
  3. Step 3: Cross multiply
    3,111,649x = 4,294,079.46 × 1,680,865
  4. Step 4: Simplify right side
    3,111,649x = 7,217,767,871,532.90
  5. Step 5: Solve for x
    x = 7,217,767,871,532.90/3,111,649
  6. Step 6: Final answer
    x = 2,319,595.77

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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.