Home / 929,039.60-1,393,559.40-742,415.60

Finding the Fourth Proportional to 929,039.60, 1,393,559.40 and 742,415.60

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Solution

The fourth proportional to 929,039.60, 1,393,559.40 and 742,415.60 is: 1,113,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,039.60 : 1,393,559.40 = 742,415.60 : x
  2. Step 2: Convert to fraction form
    929,039.60/1,393,559.40 = 742,415.60/x
  3. Step 3: Cross multiply
    929,039.60x = 1,393,559.40 × 742,415.60
  4. Step 4: Simplify right side
    929,039.60x = 1,034,600,238,086.64
  5. Step 5: Solve for x
    x = 1,034,600,238,086.64/929,039.60
  6. Step 6: Final answer
    x = 1,113,623.40

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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.