Home / 1,315,495.67-1,815,382.98-711,883.67

Finding the Fourth Proportional to 1,315,495.67, 1,815,382.98 and 711,883.67

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Solution

The fourth proportional to 1,315,495.67, 1,815,382.98 and 711,883.67 is: 982,398.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,495.67 : 1,815,382.98 = 711,883.67 : x
  2. Step 2: Convert to fraction form
    1,315,495.67/1,815,382.98 = 711,883.67/x
  3. Step 3: Cross multiply
    1,315,495.67x = 1,815,382.98 × 711,883.67
  4. Step 4: Simplify right side
    1,315,495.67x = 1,292,341,489,181.02
  5. Step 5: Solve for x
    x = 1,292,341,489,181.02/1,315,495.67
  6. Step 6: Final answer
    x = 982,398.90

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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.