Home / 2,138,851.80-3,208,763.70-719,051.40

Finding the Fourth Proportional to 2,138,851.80, 3,208,763.70 and 719,051.40

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Solution

The fourth proportional to 2,138,851.80, 3,208,763.70 and 719,051.40 is: 1,078,740.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,138,851.80 : 3,208,763.70 = 719,051.40 : x
  2. Step 2: Convert to fraction form
    2,138,851.80/3,208,763.70 = 719,051.40/x
  3. Step 3: Cross multiply
    2,138,851.80x = 3,208,763.70 × 719,051.40
  4. Step 4: Simplify right side
    2,138,851.80x = 2,307,266,030,754.18
  5. Step 5: Solve for x
    x = 2,307,266,030,754.18/2,138,851.80
  6. Step 6: Final answer
    x = 1,078,740.49

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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.