Home / 643,014.89-964,325.35-444,610.25

Finding the Fourth Proportional to 643,014.89, 964,325.35 and 444,610.25

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Solution

The fourth proportional to 643,014.89, 964,325.35 and 444,610.25 is: 666,779.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,014.89 : 964,325.35 = 444,610.25 : x
  2. Step 2: Convert to fraction form
    643,014.89/964,325.35 = 444,610.25/x
  3. Step 3: Cross multiply
    643,014.89x = 964,325.35 × 444,610.25
  4. Step 4: Simplify right side
    643,014.89x = 428,748,934,295.19
  5. Step 5: Solve for x
    x = 428,748,934,295.19/643,014.89
  6. Step 6: Final answer
    x = 666,779.17

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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.