Home / 1,090,621.20-1,505,043-631,798.32

Finding the Fourth Proportional to 1,090,621.20, 1,505,043 and 631,798.32

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Solution

The fourth proportional to 1,090,621.20, 1,505,043 and 631,798.32 is: 871,873.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,090,621.20 : 1,505,043 = 631,798.32 : x
  2. Step 2: Convert to fraction form
    1,090,621.20/1,505,043 = 631,798.32/x
  3. Step 3: Cross multiply
    1,090,621.20x = 1,505,043 × 631,798.32
  4. Step 4: Simplify right side
    1,090,621.20x = 950,883,638,927.76
  5. Step 5: Solve for x
    x = 950,883,638,927.76/1,090,621.20
  6. Step 6: Final answer
    x = 871,873.42

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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.