Home / 866,729.40-1,298,538.90-742,313.40

Finding the Fourth Proportional to 866,729.40, 1,298,538.90 and 742,313.40

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Solution

The fourth proportional to 866,729.40, 1,298,538.90 and 742,313.40 is: 1,112,138.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,729.40 : 1,298,538.90 = 742,313.40 : x
  2. Step 2: Convert to fraction form
    866,729.40/1,298,538.90 = 742,313.40/x
  3. Step 3: Cross multiply
    866,729.40x = 1,298,538.90 × 742,313.40
  4. Step 4: Simplify right side
    866,729.40x = 963,922,825,891.26
  5. Step 5: Solve for x
    x = 963,922,825,891.26/866,729.40
  6. Step 6: Final answer
    x = 1,112,138.14

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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.