Home / 3,118,438.52-4,303,445.40-1,687,654.52

Finding the Fourth Proportional to 3,118,438.52, 4,303,445.40 and 1,687,654.52

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Solution

The fourth proportional to 3,118,438.52, 4,303,445.40 and 1,687,654.52 is: 2,328,963.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,438.52 : 4,303,445.40 = 1,687,654.52 : x
  2. Step 2: Convert to fraction form
    3,118,438.52/4,303,445.40 = 1,687,654.52/x
  3. Step 3: Cross multiply
    3,118,438.52x = 4,303,445.40 × 1,687,654.52
  4. Step 4: Simplify right side
    3,118,438.52x = 7,262,729,080,883.21
  5. Step 5: Solve for x
    x = 7,262,729,080,883.21/3,118,438.52
  6. Step 6: Final answer
    x = 2,328,963.37

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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.