Home / 1,308,381.66-1,805,302.08-764,412.39

Finding the Fourth Proportional to 1,308,381.66, 1,805,302.08 and 764,412.39

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Solution

The fourth proportional to 1,308,381.66, 1,805,302.08 and 764,412.39 is: 1,054,734.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,381.66 : 1,805,302.08 = 764,412.39 : x
  2. Step 2: Convert to fraction form
    1,308,381.66/1,805,302.08 = 764,412.39/x
  3. Step 3: Cross multiply
    1,308,381.66x = 1,805,302.08 × 764,412.39
  4. Step 4: Simplify right side
    1,308,381.66x = 1,379,995,277,644.77
  5. Step 5: Solve for x
    x = 1,379,995,277,644.77/1,308,381.66
  6. Step 6: Final answer
    x = 1,054,734.50

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.