Home / 1,292,087.16-1,938,437.46-405,623.16

Finding the Fourth Proportional to 1,292,087.16, 1,938,437.46 and 405,623.16

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Solution

The fourth proportional to 1,292,087.16, 1,938,437.46 and 405,623.16 is: 608,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,087.16 : 1,938,437.46 = 405,623.16 : x
  2. Step 2: Convert to fraction form
    1,292,087.16/1,938,437.46 = 405,623.16/x
  3. Step 3: Cross multiply
    1,292,087.16x = 1,938,437.46 × 405,623.16
  4. Step 4: Simplify right side
    1,292,087.16x = 786,275,127,987.57
  5. Step 5: Solve for x
    x = 786,275,127,987.57/1,292,087.16
  6. Step 6: Final answer
    x = 608,531.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.