Home / 687,588.54-948,771.02-381,667.26

Finding the Fourth Proportional to 687,588.54, 948,771.02 and 381,667.26

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Solution

The fourth proportional to 687,588.54, 948,771.02 and 381,667.26 is: 526,644.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,588.54 : 948,771.02 = 381,667.26 : x
  2. Step 2: Convert to fraction form
    687,588.54/948,771.02 = 381,667.26/x
  3. Step 3: Cross multiply
    687,588.54x = 948,771.02 × 381,667.26
  4. Step 4: Simplify right side
    687,588.54x = 362,114,835,570.81
  5. Step 5: Solve for x
    x = 362,114,835,570.81/687,588.54
  6. Step 6: Final answer
    x = 526,644.66

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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.