Home / 860,735.10-1,290,929.85-411,455.10

Finding the Fourth Proportional to 860,735.10, 1,290,929.85 and 411,455.10

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Solution

The fourth proportional to 860,735.10, 1,290,929.85 and 411,455.10 is: 617,100.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,735.10 : 1,290,929.85 = 411,455.10 : x
  2. Step 2: Convert to fraction form
    860,735.10/1,290,929.85 = 411,455.10/x
  3. Step 3: Cross multiply
    860,735.10x = 1,290,929.85 × 411,455.10
  4. Step 4: Simplify right side
    860,735.10x = 531,159,670,524.74
  5. Step 5: Solve for x
    x = 531,159,670,524.74/860,735.10
  6. Step 6: Final answer
    x = 617,100.05

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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.