Home / 1,315,892.36-1,815,929.46-712,282.76

Finding the Fourth Proportional to 1,315,892.36, 1,815,929.46 and 712,282.76

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Solution

The fourth proportional to 1,315,892.36, 1,815,929.46 and 712,282.76 is: 982,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,892.36 : 1,815,929.46 = 712,282.76 : x
  2. Step 2: Convert to fraction form
    1,315,892.36/1,815,929.46 = 712,282.76/x
  3. Step 3: Cross multiply
    1,315,892.36x = 1,815,929.46 × 712,282.76
  4. Step 4: Simplify right side
    1,315,892.36x = 1,293,455,247,734.11
  5. Step 5: Solve for x
    x = 1,293,455,247,734.11/1,315,892.36
  6. Step 6: Final answer
    x = 982,949.13

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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.