Home / 945,770.87-1,303,638.75-639,735.45

Finding the Fourth Proportional to 945,770.87, 1,303,638.75 and 639,735.45

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Solution

The fourth proportional to 945,770.87, 1,303,638.75 and 639,735.45 is: 881,803.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,770.87 : 1,303,638.75 = 639,735.45 : x
  2. Step 2: Convert to fraction form
    945,770.87/1,303,638.75 = 639,735.45/x
  3. Step 3: Cross multiply
    945,770.87x = 1,303,638.75 × 639,735.45
  4. Step 4: Simplify right side
    945,770.87x = 833,983,922,368.69
  5. Step 5: Solve for x
    x = 833,983,922,368.69/945,770.87
  6. Step 6: Final answer
    x = 881,803.35

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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.