Home / 1,512,072.90-2,268,109.37-390,141.90

Finding the Fourth Proportional to 1,512,072.90, 2,268,109.37 and 390,141.90

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Solution

The fourth proportional to 1,512,072.90, 2,268,109.37 and 390,141.90 is: 585,212.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,512,072.90 : 2,268,109.37 = 390,141.90 : x
  2. Step 2: Convert to fraction form
    1,512,072.90/2,268,109.37 = 390,141.90/x
  3. Step 3: Cross multiply
    1,512,072.90x = 2,268,109.37 × 390,141.90
  4. Step 4: Simplify right side
    1,512,072.90x = 884,884,497,068.89
  5. Step 5: Solve for x
    x = 884,884,497,068.89/1,512,072.90
  6. Step 6: Final answer
    x = 585,212.85

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1.5x scale

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.