Home / 2,657,619.60-3,987,064.29-860,505

Finding the Fourth Proportional to 2,657,619.60, 3,987,064.29 and 860,505

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Solution

The fourth proportional to 2,657,619.60, 3,987,064.29 and 860,505 is: 1,290,963.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657,619.60 : 3,987,064.29 = 860,505 : x
  2. Step 2: Convert to fraction form
    2,657,619.60/3,987,064.29 = 860,505/x
  3. Step 3: Cross multiply
    2,657,619.60x = 3,987,064.29 × 860,505
  4. Step 4: Simplify right side
    2,657,619.60x = 3,430,888,756,866.45
  5. Step 5: Solve for x
    x = 3,430,888,756,866.45/2,657,619.60
  6. Step 6: Final answer
    x = 1,290,963.07

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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.