Home / 875,285.55-1,312,928.33-276,667.12

Finding the Fourth Proportional to 875,285.55, 1,312,928.33 and 276,667.12

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Solution

The fourth proportional to 875,285.55, 1,312,928.33 and 276,667.12 is: 415,000.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,285.55 : 1,312,928.33 = 276,667.12 : x
  2. Step 2: Convert to fraction form
    875,285.55/1,312,928.33 = 276,667.12/x
  3. Step 3: Cross multiply
    875,285.55x = 1,312,928.33 × 276,667.12
  4. Step 4: Simplify right side
    875,285.55x = 363,244,099,827.51
  5. Step 5: Solve for x
    x = 363,244,099,827.51/875,285.55
  6. Step 6: Final answer
    x = 415,000.68

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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.