Home / 776,385-1,071,427.70-436,853.25

Finding the Fourth Proportional to 776,385, 1,071,427.70 and 436,853.25

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Solution

The fourth proportional to 776,385, 1,071,427.70 and 436,853.25 is: 602,866.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,385 : 1,071,427.70 = 436,853.25 : x
  2. Step 2: Convert to fraction form
    776,385/1,071,427.70 = 436,853.25/x
  3. Step 3: Cross multiply
    776,385x = 1,071,427.70 × 436,853.25
  4. Step 4: Simplify right side
    776,385x = 468,056,673,977.16
  5. Step 5: Solve for x
    x = 468,056,673,977.16/776,385
  6. Step 6: Final answer
    x = 602,866.71

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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.