Home / 765,202.83-1,055,988.72-438,509.37

Finding the Fourth Proportional to 765,202.83, 1,055,988.72 and 438,509.37

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Solution

The fourth proportional to 765,202.83, 1,055,988.72 and 438,509.37 is: 605,147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,202.83 : 1,055,988.72 = 438,509.37 : x
  2. Step 2: Convert to fraction form
    765,202.83/1,055,988.72 = 438,509.37/x
  3. Step 3: Cross multiply
    765,202.83x = 1,055,988.72 × 438,509.37
  4. Step 4: Simplify right side
    765,202.83x = 463,060,948,334.31
  5. Step 5: Solve for x
    x = 463,060,948,334.31/765,202.83
  6. Step 6: Final answer
    x = 605,147.98

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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.