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Finding the Fourth Proportional to 860,003.60, 1,290,264.60 and 460,835.60

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Solution

The fourth proportional to 860,003.60, 1,290,264.60 and 460,835.60 is: 691,392.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,003.60 : 1,290,264.60 = 460,835.60 : x
  2. Step 2: Convert to fraction form
    860,003.60/1,290,264.60 = 460,835.60/x
  3. Step 3: Cross multiply
    860,003.60x = 1,290,264.60 × 460,835.60
  4. Step 4: Simplify right side
    860,003.60x = 594,599,861,099.76
  5. Step 5: Solve for x
    x = 594,599,861,099.76/860,003.60
  6. Step 6: Final answer
    x = 691,392.29

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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.