Home / 1,810,308.75-2,715,812.81-688,290.51

Finding the Fourth Proportional to 1,810,308.75, 2,715,812.81 and 688,290.51

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Solution

The fourth proportional to 1,810,308.75, 2,715,812.81 and 688,290.51 is: 1,032,568.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,810,308.75 : 2,715,812.81 = 688,290.51 : x
  2. Step 2: Convert to fraction form
    1,810,308.75/2,715,812.81 = 688,290.51/x
  3. Step 3: Cross multiply
    1,810,308.75x = 2,715,812.81 × 688,290.51
  4. Step 4: Simplify right side
    1,810,308.75x = 1,869,268,180,617.98
  5. Step 5: Solve for x
    x = 1,869,268,180,617.98/1,810,308.75
  6. Step 6: Final answer
    x = 1,032,568.72

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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.