Home / 987,515.40-1,362,960.18-579,707.40

Finding the Fourth Proportional to 987,515.40, 1,362,960.18 and 579,707.40

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Solution

The fourth proportional to 987,515.40, 1,362,960.18 and 579,707.40 is: 800,107.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,515.40 : 1,362,960.18 = 579,707.40 : x
  2. Step 2: Convert to fraction form
    987,515.40/1,362,960.18 = 579,707.40/x
  3. Step 3: Cross multiply
    987,515.40x = 1,362,960.18 × 579,707.40
  4. Step 4: Simplify right side
    987,515.40x = 790,118,102,251.33
  5. Step 5: Solve for x
    x = 790,118,102,251.33/987,515.40
  6. Step 6: Final answer
    x = 800,107.12

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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.