Home / 751,415.96-1,036,800.78-445,357.40

Finding the Fourth Proportional to 751,415.96, 1,036,800.78 and 445,357.40

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Solution

The fourth proportional to 751,415.96, 1,036,800.78 and 445,357.40 is: 614,502.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    751,415.96 : 1,036,800.78 = 445,357.40 : x
  2. Step 2: Convert to fraction form
    751,415.96/1,036,800.78 = 445,357.40/x
  3. Step 3: Cross multiply
    751,415.96x = 1,036,800.78 × 445,357.40
  4. Step 4: Simplify right side
    751,415.96x = 461,746,899,698.77
  5. Step 5: Solve for x
    x = 461,746,899,698.77/751,415.96
  6. Step 6: Final answer
    x = 614,502.39

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Half scale
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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.