Home / 792,140.10-1,188,210.15-456,216.90

Finding the Fourth Proportional to 792,140.10, 1,188,210.15 and 456,216.90

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Solution

The fourth proportional to 792,140.10, 1,188,210.15 and 456,216.90 is: 684,325.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    792,140.10 : 1,188,210.15 = 456,216.90 : x
  2. Step 2: Convert to fraction form
    792,140.10/1,188,210.15 = 456,216.90/x
  3. Step 3: Cross multiply
    792,140.10x = 1,188,210.15 × 456,216.90
  4. Step 4: Simplify right side
    792,140.10x = 542,081,551,181.54
  5. Step 5: Solve for x
    x = 542,081,551,181.54/792,140.10
  6. Step 6: Final answer
    x = 684,325.35

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Double scale
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Similar ratio
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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.