Home / 1,318,625.25-1,819,703.79-715,013.25

Finding the Fourth Proportional to 1,318,625.25, 1,819,703.79 and 715,013.25

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Solution

The fourth proportional to 1,318,625.25, 1,819,703.79 and 715,013.25 is: 986,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,625.25 : 1,819,703.79 = 715,013.25 : x
  2. Step 2: Convert to fraction form
    1,318,625.25/1,819,703.79 = 715,013.25/x
  3. Step 3: Cross multiply
    1,318,625.25x = 1,819,703.79 × 715,013.25
  4. Step 4: Simplify right side
    1,318,625.25x = 1,301,112,320,925.22
  5. Step 5: Solve for x
    x = 1,301,112,320,925.22/1,318,625.25
  6. Step 6: Final answer
    x = 986,718.80

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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.