Home / 1,140,090.88-1,573,080.32-687,372.16

Finding the Fourth Proportional to 1,140,090.88, 1,573,080.32 and 687,372.16

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Solution

The fourth proportional to 1,140,090.88, 1,573,080.32 and 687,372.16 is: 948,425.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,090.88 : 1,573,080.32 = 687,372.16 : x
  2. Step 2: Convert to fraction form
    1,140,090.88/1,573,080.32 = 687,372.16/x
  3. Step 3: Cross multiply
    1,140,090.88x = 1,573,080.32 × 687,372.16
  4. Step 4: Simplify right side
    1,140,090.88x = 1,081,291,617,411.89
  5. Step 5: Solve for x
    x = 1,081,291,617,411.89/1,140,090.88
  6. Step 6: Final answer
    x = 948,425.81

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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.