Home / 1,307,071.72-1,960,940.21-767,784.05

Finding the Fourth Proportional to 1,307,071.72, 1,960,940.21 and 767,784.05

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Solution

The fourth proportional to 1,307,071.72, 1,960,940.21 and 767,784.05 is: 1,151,871.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,071.72 : 1,960,940.21 = 767,784.05 : x
  2. Step 2: Convert to fraction form
    1,307,071.72/1,960,940.21 = 767,784.05/x
  3. Step 3: Cross multiply
    1,307,071.72x = 1,960,940.21 × 767,784.05
  4. Step 4: Simplify right side
    1,307,071.72x = 1,505,578,608,920.23
  5. Step 5: Solve for x
    x = 1,505,578,608,920.23/1,307,071.72
  6. Step 6: Final answer
    x = 1,151,871.46

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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.