Home / 1,318,167.86-1,818,958.46-766,985.54

Finding the Fourth Proportional to 1,318,167.86, 1,818,958.46 and 766,985.54

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Solution

The fourth proportional to 1,318,167.86, 1,818,958.46 and 766,985.54 is: 1,058,374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,167.86 : 1,818,958.46 = 766,985.54 : x
  2. Step 2: Convert to fraction form
    1,318,167.86/1,818,958.46 = 766,985.54/x
  3. Step 3: Cross multiply
    1,318,167.86x = 1,818,958.46 × 766,985.54
  4. Step 4: Simplify right side
    1,318,167.86x = 1,395,114,823,750.95
  5. Step 5: Solve for x
    x = 1,395,114,823,750.95/1,318,167.86
  6. Step 6: Final answer
    x = 1,058,374.18

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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.