Home / 1,296,564.39-1,789,211.90-715,775.06

Finding the Fourth Proportional to 1,296,564.39, 1,789,211.90 and 715,775.06

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Solution

The fourth proportional to 1,296,564.39, 1,789,211.90 and 715,775.06 is: 987,743.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,564.39 : 1,789,211.90 = 715,775.06 : x
  2. Step 2: Convert to fraction form
    1,296,564.39/1,789,211.90 = 715,775.06/x
  3. Step 3: Cross multiply
    1,296,564.39x = 1,789,211.90 × 715,775.06
  4. Step 4: Simplify right side
    1,296,564.39x = 1,280,673,255,075.21
  5. Step 5: Solve for x
    x = 1,280,673,255,075.21/1,296,564.39
  6. Step 6: Final answer
    x = 987,743.66

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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.