Home / 1,868,285.40-2,802,039.30-520,099.80

Finding the Fourth Proportional to 1,868,285.40, 2,802,039.30 and 520,099.80

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Solution

The fourth proportional to 1,868,285.40, 2,802,039.30 and 520,099.80 is: 780,041.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,868,285.40 : 2,802,039.30 = 520,099.80 : x
  2. Step 2: Convert to fraction form
    1,868,285.40/2,802,039.30 = 520,099.80/x
  3. Step 3: Cross multiply
    1,868,285.40x = 2,802,039.30 × 520,099.80
  4. Step 4: Simplify right side
    1,868,285.40x = 1,457,340,079,522.14
  5. Step 5: Solve for x
    x = 1,457,340,079,522.14/1,868,285.40
  6. Step 6: Final answer
    x = 780,041.46

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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.