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Finding the Fourth Proportional to 860,168.90, 1,288,698.15 and 735,752.90

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Solution

The fourth proportional to 860,168.90, 1,288,698.15 and 735,752.90 is: 1,102,299.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,168.90 : 1,288,698.15 = 735,752.90 : x
  2. Step 2: Convert to fraction form
    860,168.90/1,288,698.15 = 735,752.90/x
  3. Step 3: Cross multiply
    860,168.90x = 1,288,698.15 × 735,752.90
  4. Step 4: Simplify right side
    860,168.90x = 948,163,401,087.14
  5. Step 5: Solve for x
    x = 948,163,401,087.14/860,168.90
  6. Step 6: Final answer
    x = 1,102,299.10

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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.