Home / 860,192.60-1,289,981.70-299,245.40

Finding the Fourth Proportional to 860,192.60, 1,289,981.70 and 299,245.40

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Solution

The fourth proportional to 860,192.60, 1,289,981.70 and 299,245.40 is: 448,761.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,192.60 : 1,289,981.70 = 299,245.40 : x
  2. Step 2: Convert to fraction form
    860,192.60/1,289,981.70 = 299,245.40/x
  3. Step 3: Cross multiply
    860,192.60x = 1,289,981.70 × 299,245.40
  4. Step 4: Simplify right side
    860,192.60x = 386,021,089,809.18
  5. Step 5: Solve for x
    x = 386,021,089,809.18/860,192.60
  6. Step 6: Final answer
    x = 448,761.23

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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.