Home / 1,239,215.60-1,860,205.80-1,157,999.60

Finding the Fourth Proportional to 1,239,215.60, 1,860,205.80 and 1,157,999.60

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Solution

The fourth proportional to 1,239,215.60, 1,860,205.80 and 1,157,999.60 is: 1,738,291.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,215.60 : 1,860,205.80 = 1,157,999.60 : x
  2. Step 2: Convert to fraction form
    1,239,215.60/1,860,205.80 = 1,157,999.60/x
  3. Step 3: Cross multiply
    1,239,215.60x = 1,860,205.80 × 1,157,999.60
  4. Step 4: Simplify right side
    1,239,215.60x = 2,154,117,572,317.68
  5. Step 5: Solve for x
    x = 2,154,117,572,317.68/1,239,215.60
  6. Step 6: Final answer
    x = 1,738,291.20

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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.