Home / 1,152,051.66-1,589,835.87-642,775.50

Finding the Fourth Proportional to 1,152,051.66, 1,589,835.87 and 642,775.50

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Solution

The fourth proportional to 1,152,051.66, 1,589,835.87 and 642,775.50 is: 887,032.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,051.66 : 1,589,835.87 = 642,775.50 : x
  2. Step 2: Convert to fraction form
    1,152,051.66/1,589,835.87 = 642,775.50/x
  3. Step 3: Cross multiply
    1,152,051.66x = 1,589,835.87 × 642,775.50
  4. Step 4: Simplify right side
    1,152,051.66x = 1,021,907,546,257.19
  5. Step 5: Solve for x
    x = 1,021,907,546,257.19/1,152,051.66
  6. Step 6: Final answer
    x = 887,032.74

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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.