Home / 751,280.96-1,036,765.68-407,126.40

Finding the Fourth Proportional to 751,280.96, 1,036,765.68 and 407,126.40

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Solution

The fourth proportional to 751,280.96, 1,036,765.68 and 407,126.40 is: 561,833.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,280.96 : 1,036,765.68 = 407,126.40 : x
  2. Step 2: Convert to fraction form
    751,280.96/1,036,765.68 = 407,126.40/x
  3. Step 3: Cross multiply
    751,280.96x = 1,036,765.68 × 407,126.40
  4. Step 4: Simplify right side
    751,280.96x = 422,094,678,941.95
  5. Step 5: Solve for x
    x = 422,094,678,941.95/751,280.96
  6. Step 6: Final answer
    x = 561,833.32

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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.