Home / 379,905.60-526,667.20-359,681.52

Finding the Fourth Proportional to 379,905.60, 526,667.20 and 359,681.52

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Solution

The fourth proportional to 379,905.60, 526,667.20 and 359,681.52 is: 498,630.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,905.60 : 526,667.20 = 359,681.52 : x
  2. Step 2: Convert to fraction form
    379,905.60/526,667.20 = 359,681.52/x
  3. Step 3: Cross multiply
    379,905.60x = 526,667.20 × 359,681.52
  4. Step 4: Simplify right side
    379,905.60x = 189,432,459,030.14
  5. Step 5: Solve for x
    x = 189,432,459,030.14/379,905.60
  6. Step 6: Final answer
    x = 498,630.34

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.