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Finding the Fourth Proportional to 675,090.36, 931,185.63 and 432,989.46

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Solution

The fourth proportional to 675,090.36, 931,185.63 and 432,989.46 is: 597,243.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,090.36 : 931,185.63 = 432,989.46 : x
  2. Step 2: Convert to fraction form
    675,090.36/931,185.63 = 432,989.46/x
  3. Step 3: Cross multiply
    675,090.36x = 931,185.63 × 432,989.46
  4. Step 4: Simplify right side
    675,090.36x = 403,193,563,093.46
  5. Step 5: Solve for x
    x = 403,193,563,093.46/675,090.36
  6. Step 6: Final answer
    x = 597,243.85

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1.5x scale

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.