Home / 987,514.40-1,362,958.80-579,706.40

Finding the Fourth Proportional to 987,514.40, 1,362,958.80 and 579,706.40

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Solution

The fourth proportional to 987,514.40, 1,362,958.80 and 579,706.40 is: 800,105.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,514.40 : 1,362,958.80 = 579,706.40 : x
  2. Step 2: Convert to fraction form
    987,514.40/1,362,958.80 = 579,706.40/x
  3. Step 3: Cross multiply
    987,514.40x = 1,362,958.80 × 579,706.40
  4. Step 4: Simplify right side
    987,514.40x = 790,115,939,296.32
  5. Step 5: Solve for x
    x = 790,115,939,296.32/987,514.40
  6. Step 6: Final answer
    x = 800,105.74

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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.