Home / 1,226,211.60-1,692,319.32-742,762.56

Finding the Fourth Proportional to 1,226,211.60, 1,692,319.32 and 742,762.56

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Solution

The fourth proportional to 1,226,211.60, 1,692,319.32 and 742,762.56 is: 1,025,101.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,211.60 : 1,692,319.32 = 742,762.56 : x
  2. Step 2: Convert to fraction form
    1,226,211.60/1,692,319.32 = 742,762.56/x
  3. Step 3: Cross multiply
    1,226,211.60x = 1,692,319.32 × 742,762.56
  4. Step 4: Simplify right side
    1,226,211.60x = 1,256,991,430,460.66
  5. Step 5: Solve for x
    x = 1,256,991,430,460.66/1,226,211.60
  6. Step 6: Final answer
    x = 1,025,101.57

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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.