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Finding the Fourth Proportional to 675,266.62, 931,665.62 and 388,779.34

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Solution

The fourth proportional to 675,266.62, 931,665.62 and 388,779.34 is: 536,399.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,266.62 : 931,665.62 = 388,779.34 : x
  2. Step 2: Convert to fraction form
    675,266.62/931,665.62 = 388,779.34/x
  3. Step 3: Cross multiply
    675,266.62x = 931,665.62 × 388,779.34
  4. Step 4: Simplify right side
    675,266.62x = 362,212,344,844.29
  5. Step 5: Solve for x
    x = 362,212,344,844.29/675,266.62
  6. Step 6: Final answer
    x = 536,399.01

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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.