Home / 1,272,888.72-1,756,597.32-729,074.16

Finding the Fourth Proportional to 1,272,888.72, 1,756,597.32 and 729,074.16

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Solution

The fourth proportional to 1,272,888.72, 1,756,597.32 and 729,074.16 is: 1,006,128.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,888.72 : 1,756,597.32 = 729,074.16 : x
  2. Step 2: Convert to fraction form
    1,272,888.72/1,756,597.32 = 729,074.16/x
  3. Step 3: Cross multiply
    1,272,888.72x = 1,756,597.32 × 729,074.16
  4. Step 4: Simplify right side
    1,272,888.72x = 1,280,689,715,537.25
  5. Step 5: Solve for x
    x = 1,280,689,715,537.25/1,272,888.72
  6. Step 6: Final answer
    x = 1,006,128.58

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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.