Home / 1,215,172.72-1,676,941.14-671,296.60

Finding the Fourth Proportional to 1,215,172.72, 1,676,941.14 and 671,296.60

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Solution

The fourth proportional to 1,215,172.72, 1,676,941.14 and 671,296.60 is: 926,390.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,172.72 : 1,676,941.14 = 671,296.60 : x
  2. Step 2: Convert to fraction form
    1,215,172.72/1,676,941.14 = 671,296.60/x
  3. Step 3: Cross multiply
    1,215,172.72x = 1,676,941.14 × 671,296.60
  4. Step 4: Simplify right side
    1,215,172.72x = 1,125,724,885,682.12
  5. Step 5: Solve for x
    x = 1,125,724,885,682.12/1,215,172.72
  6. Step 6: Final answer
    x = 926,390.85

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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.