Home / 1,040,205.60-1,560,308.40-859,802.40

Finding the Fourth Proportional to 1,040,205.60, 1,560,308.40 and 859,802.40

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Solution

The fourth proportional to 1,040,205.60, 1,560,308.40 and 859,802.40 is: 1,289,703.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,205.60 : 1,560,308.40 = 859,802.40 : x
  2. Step 2: Convert to fraction form
    1,040,205.60/1,560,308.40 = 859,802.40/x
  3. Step 3: Cross multiply
    1,040,205.60x = 1,560,308.40 × 859,802.40
  4. Step 4: Simplify right side
    1,040,205.60x = 1,341,556,907,060.16
  5. Step 5: Solve for x
    x = 1,341,556,907,060.16/1,040,205.60
  6. Step 6: Final answer
    x = 1,289,703.60

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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.