Home / 860,431.02-1,187,346.06-478,449.60

Finding the Fourth Proportional to 860,431.02, 1,187,346.06 and 478,449.60

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Solution

The fourth proportional to 860,431.02, 1,187,346.06 and 478,449.60 is: 660,233.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,431.02 : 1,187,346.06 = 478,449.60 : x
  2. Step 2: Convert to fraction form
    860,431.02/1,187,346.06 = 478,449.60/x
  3. Step 3: Cross multiply
    860,431.02x = 1,187,346.06 × 478,449.60
  4. Step 4: Simplify right side
    860,431.02x = 568,085,247,468.58
  5. Step 5: Solve for x
    x = 568,085,247,468.58/860,431.02
  6. Step 6: Final answer
    x = 660,233.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.