Home / 401,928.58-602,886.72-135,875.98

Finding the Fourth Proportional to 401,928.58, 602,886.72 and 135,875.98

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Solution

The fourth proportional to 401,928.58, 602,886.72 and 135,875.98 is: 203,811.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,928.58 : 602,886.72 = 135,875.98 : x
  2. Step 2: Convert to fraction form
    401,928.58/602,886.72 = 135,875.98/x
  3. Step 3: Cross multiply
    401,928.58x = 602,886.72 × 135,875.98
  4. Step 4: Simplify right side
    401,928.58x = 81,917,820,894.55
  5. Step 5: Solve for x
    x = 81,917,820,894.55/401,928.58
  6. Step 6: Final answer
    x = 203,811.89

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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.