Home / 860,193.60-1,289,983.20-299,246.40

Finding the Fourth Proportional to 860,193.60, 1,289,983.20 and 299,246.40

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Solution

The fourth proportional to 860,193.60, 1,289,983.20 and 299,246.40 is: 448,762.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,193.60 : 1,289,983.20 = 299,246.40 : x
  2. Step 2: Convert to fraction form
    860,193.60/1,289,983.20 = 299,246.40/x
  3. Step 3: Cross multiply
    860,193.60x = 1,289,983.20 × 299,246.40
  4. Step 4: Simplify right side
    860,193.60x = 386,022,828,660.48
  5. Step 5: Solve for x
    x = 386,022,828,660.48/860,193.60
  6. Step 6: Final answer
    x = 448,762.73

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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.