Home / 1,643,685.12-2,268,116.48-1,127,881.28

Finding the Fourth Proportional to 1,643,685.12, 2,268,116.48 and 1,127,881.28

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Solution

The fourth proportional to 1,643,685.12, 2,268,116.48 and 1,127,881.28 is: 1,556,360.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,643,685.12 : 2,268,116.48 = 1,127,881.28 : x
  2. Step 2: Convert to fraction form
    1,643,685.12/2,268,116.48 = 1,127,881.28/x
  3. Step 3: Cross multiply
    1,643,685.12x = 2,268,116.48 × 1,127,881.28
  4. Step 4: Simplify right side
    1,643,685.12x = 2,558,166,118,651.49
  5. Step 5: Solve for x
    x = 2,558,166,118,651.49/1,643,685.12
  6. Step 6: Final answer
    x = 1,556,360.21

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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.