Home / 1,405,090.71-1,938,549.38-914,836.37

Finding the Fourth Proportional to 1,405,090.71, 1,938,549.38 and 914,836.37

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Solution

The fourth proportional to 1,405,090.71, 1,938,549.38 and 914,836.37 is: 1,262,164.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,090.71 : 1,938,549.38 = 914,836.37 : x
  2. Step 2: Convert to fraction form
    1,405,090.71/1,938,549.38 = 914,836.37/x
  3. Step 3: Cross multiply
    1,405,090.71x = 1,938,549.38 × 914,836.37
  4. Step 4: Simplify right side
    1,405,090.71x = 1,773,455,463,598.02
  5. Step 5: Solve for x
    x = 1,773,455,463,598.02/1,405,090.71
  6. Step 6: Final answer
    x = 1,262,164.39

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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.