Home / 860,858.40-1,290,704.40-456,117.60

Finding the Fourth Proportional to 860,858.40, 1,290,704.40 and 456,117.60

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Solution

The fourth proportional to 860,858.40, 1,290,704.40 and 456,117.60 is: 683,867.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,858.40 : 1,290,704.40 = 456,117.60 : x
  2. Step 2: Convert to fraction form
    860,858.40/1,290,704.40 = 456,117.60/x
  3. Step 3: Cross multiply
    860,858.40x = 1,290,704.40 × 456,117.60
  4. Step 4: Simplify right side
    860,858.40x = 588,712,993,237.44
  5. Step 5: Solve for x
    x = 588,712,993,237.44/860,858.40
  6. Step 6: Final answer
    x = 683,867.40

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Double scale
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1.5x scale

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.