Home / 1,347,344.30-2,021,016.45-638,756.30

Finding the Fourth Proportional to 1,347,344.30, 2,021,016.45 and 638,756.30

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Solution

The fourth proportional to 1,347,344.30, 2,021,016.45 and 638,756.30 is: 958,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,344.30 : 2,021,016.45 = 638,756.30 : x
  2. Step 2: Convert to fraction form
    1,347,344.30/2,021,016.45 = 638,756.30/x
  3. Step 3: Cross multiply
    1,347,344.30x = 2,021,016.45 × 638,756.30
  4. Step 4: Simplify right side
    1,347,344.30x = 1,290,936,989,841.14
  5. Step 5: Solve for x
    x = 1,290,936,989,841.14/1,347,344.30
  6. Step 6: Final answer
    x = 958,134.45

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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.