Home / 945,705.40-1,418,558.10-777,743.80

Finding the Fourth Proportional to 945,705.40, 1,418,558.10 and 777,743.80

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Solution

The fourth proportional to 945,705.40, 1,418,558.10 and 777,743.80 is: 1,166,615.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,705.40 : 1,418,558.10 = 777,743.80 : x
  2. Step 2: Convert to fraction form
    945,705.40/1,418,558.10 = 777,743.80/x
  3. Step 3: Cross multiply
    945,705.40x = 1,418,558.10 × 777,743.80
  4. Step 4: Simplify right side
    945,705.40x = 1,103,274,767,214.78
  5. Step 5: Solve for x
    x = 1,103,274,767,214.78/945,705.40
  6. Step 6: Final answer
    x = 1,166,615.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.