Home / 643,008.90-964,316.34-444,604.26

Finding the Fourth Proportional to 643,008.90, 964,316.34 and 444,604.26

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Solution

The fourth proportional to 643,008.90, 964,316.34 and 444,604.26 is: 666,770.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,008.90 : 964,316.34 = 444,604.26 : x
  2. Step 2: Convert to fraction form
    643,008.90/964,316.34 = 444,604.26/x
  3. Step 3: Cross multiply
    643,008.90x = 964,316.34 × 444,604.26
  4. Step 4: Simplify right side
    643,008.90x = 428,739,152,751.61
  5. Step 5: Solve for x
    x = 428,739,152,751.61/643,008.90
  6. Step 6: Final answer
    x = 666,770.17

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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.