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Finding the Fourth Proportional to 860,803.92, 1,291,352.94 and 355,088.44

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Solution

The fourth proportional to 860,803.92, 1,291,352.94 and 355,088.44 is: 532,693.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,803.92 : 1,291,352.94 = 355,088.44 : x
  2. Step 2: Convert to fraction form
    860,803.92/1,291,352.94 = 355,088.44/x
  3. Step 3: Cross multiply
    860,803.92x = 1,291,352.94 × 355,088.44
  4. Step 4: Simplify right side
    860,803.92x = 458,544,500,954.01
  5. Step 5: Solve for x
    x = 458,544,500,954.01/860,803.92
  6. Step 6: Final answer
    x = 532,693.32

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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.