Home / 918,810.64-1,267,857.20-551,268.24

Finding the Fourth Proportional to 918,810.64, 1,267,857.20 and 551,268.24

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Solution

The fourth proportional to 918,810.64, 1,267,857.20 and 551,268.24 is: 760,689.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,810.64 : 1,267,857.20 = 551,268.24 : x
  2. Step 2: Convert to fraction form
    918,810.64/1,267,857.20 = 551,268.24/x
  3. Step 3: Cross multiply
    918,810.64x = 1,267,857.20 × 551,268.24
  4. Step 4: Simplify right side
    918,810.64x = 698,929,407,215.33
  5. Step 5: Solve for x
    x = 698,929,407,215.33/918,810.64
  6. Step 6: Final answer
    x = 760,689.28

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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.