Home / 1,310,656.87-1,807,774.77-874,854.49

Finding the Fourth Proportional to 1,310,656.87, 1,807,774.77 and 874,854.49

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Solution

The fourth proportional to 1,310,656.87, 1,807,774.77 and 874,854.49 is: 1,206,677.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,310,656.87 : 1,807,774.77 = 874,854.49 : x
  2. Step 2: Convert to fraction form
    1,310,656.87/1,807,774.77 = 874,854.49/x
  3. Step 3: Cross multiply
    1,310,656.87x = 1,807,774.77 × 874,854.49
  4. Step 4: Simplify right side
    1,310,656.87x = 1,581,539,874,443.22
  5. Step 5: Solve for x
    x = 1,581,539,874,443.22/1,310,656.87
  6. Step 6: Final answer
    x = 1,206,677.29

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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.