Home / 410,386.31-615,674.24-129,903.56

Finding the Fourth Proportional to 410,386.31, 615,674.24 and 129,903.56

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Solution

The fourth proportional to 410,386.31, 615,674.24 and 129,903.56 is: 194,885.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,386.31 : 615,674.24 = 129,903.56 : x
  2. Step 2: Convert to fraction form
    410,386.31/615,674.24 = 129,903.56/x
  3. Step 3: Cross multiply
    410,386.31x = 615,674.24 × 129,903.56
  4. Step 4: Simplify right side
    410,386.31x = 79,978,271,848.41
  5. Step 5: Solve for x
    x = 79,978,271,848.41/410,386.31
  6. Step 6: Final answer
    x = 194,885.33

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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.