Home / 1,586,012.76-2,188,699.40-860,860.31

Finding the Fourth Proportional to 1,586,012.76, 2,188,699.40 and 860,860.31

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Solution

The fourth proportional to 1,586,012.76, 2,188,699.40 and 860,860.31 is: 1,187,988.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,012.76 : 2,188,699.40 = 860,860.31 : x
  2. Step 2: Convert to fraction form
    1,586,012.76/2,188,699.40 = 860,860.31/x
  3. Step 3: Cross multiply
    1,586,012.76x = 2,188,699.40 × 860,860.31
  4. Step 4: Simplify right side
    1,586,012.76x = 1,884,164,435,189.47
  5. Step 5: Solve for x
    x = 1,884,164,435,189.47/1,586,012.76
  6. Step 6: Final answer
    x = 1,187,988.19

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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.