Home / 987,512.40-1,362,956.04-579,704.40

Finding the Fourth Proportional to 987,512.40, 1,362,956.04 and 579,704.40

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Solution

The fourth proportional to 987,512.40, 1,362,956.04 and 579,704.40 is: 800,102.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,512.40 : 1,362,956.04 = 579,704.40 : x
  2. Step 2: Convert to fraction form
    987,512.40/1,362,956.04 = 579,704.40/x
  3. Step 3: Cross multiply
    987,512.40x = 1,362,956.04 × 579,704.40
  4. Step 4: Simplify right side
    987,512.40x = 790,111,613,394.58
  5. Step 5: Solve for x
    x = 790,111,613,394.58/987,512.40
  6. Step 6: Final answer
    x = 800,102.98

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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.