Home / 990,692.56-1,367,160.99-561,056.32

Finding the Fourth Proportional to 990,692.56, 1,367,160.99 and 561,056.32

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Solution

The fourth proportional to 990,692.56, 1,367,160.99 and 561,056.32 is: 774,260.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,692.56 : 1,367,160.99 = 561,056.32 : x
  2. Step 2: Convert to fraction form
    990,692.56/1,367,160.99 = 561,056.32/x
  3. Step 3: Cross multiply
    990,692.56x = 1,367,160.99 × 561,056.32
  4. Step 4: Simplify right side
    990,692.56x = 767,054,313,896.96
  5. Step 5: Solve for x
    x = 767,054,313,896.96/990,692.56
  6. Step 6: Final answer
    x = 774,260.70

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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.