Home / 920,365.60-1,269,856.56-538,486.24

Finding the Fourth Proportional to 920,365.60, 1,269,856.56 and 538,486.24

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Solution

The fourth proportional to 920,365.60, 1,269,856.56 and 538,486.24 is: 742,965.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,365.60 : 1,269,856.56 = 538,486.24 : x
  2. Step 2: Convert to fraction form
    920,365.60/1,269,856.56 = 538,486.24/x
  3. Step 3: Cross multiply
    920,365.60x = 1,269,856.56 × 538,486.24
  4. Step 4: Simplify right side
    920,365.60x = 683,800,284,333.73
  5. Step 5: Solve for x
    x = 683,800,284,333.73/920,365.60
  6. Step 6: Final answer
    x = 742,965.93

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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.