Home / 638,877.81-881,667.97-348,494.26

Finding the Fourth Proportional to 638,877.81, 881,667.97 and 348,494.26

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Solution

The fourth proportional to 638,877.81, 881,667.97 and 348,494.26 is: 480,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,877.81 : 881,667.97 = 348,494.26 : x
  2. Step 2: Convert to fraction form
    638,877.81/881,667.97 = 348,494.26/x
  3. Step 3: Cross multiply
    638,877.81x = 881,667.97 × 348,494.26
  4. Step 4: Simplify right side
    638,877.81x = 307,256,226,770.85
  5. Step 5: Solve for x
    x = 307,256,226,770.85/638,877.81
  6. Step 6: Final answer
    x = 480,931.13

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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.