Home / 1,272,729.04-1,756,329.10-721,495.86

Finding the Fourth Proportional to 1,272,729.04, 1,756,329.10 and 721,495.86

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Solution

The fourth proportional to 1,272,729.04, 1,756,329.10 and 721,495.86 is: 995,643.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,272,729.04 : 1,756,329.10 = 721,495.86 : x
  2. Step 2: Convert to fraction form
    1,272,729.04/1,756,329.10 = 721,495.86/x
  3. Step 3: Cross multiply
    1,272,729.04x = 1,756,329.10 × 721,495.86
  4. Step 4: Simplify right side
    1,272,729.04x = 1,267,184,174,447.53
  5. Step 5: Solve for x
    x = 1,267,184,174,447.53/1,272,729.04
  6. Step 6: Final answer
    x = 995,643.33

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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.