Home / 1,585,999.69-2,188,681.76-860,847.55

Finding the Fourth Proportional to 1,585,999.69, 2,188,681.76 and 860,847.55

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Solution

The fourth proportional to 1,585,999.69, 2,188,681.76 and 860,847.55 is: 1,187,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,999.69 : 2,188,681.76 = 860,847.55 : x
  2. Step 2: Convert to fraction form
    1,585,999.69/2,188,681.76 = 860,847.55/x
  3. Step 3: Cross multiply
    1,585,999.69x = 2,188,681.76 × 860,847.55
  4. Step 4: Simplify right side
    1,585,999.69x = 1,884,121,327,506.10
  5. Step 5: Solve for x
    x = 1,884,121,327,506.10/1,585,999.69
  6. Step 6: Final answer
    x = 1,187,970.81

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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.