Home / 1,348,333.86-2,021,718.33-638,355.90

Finding the Fourth Proportional to 1,348,333.86, 2,021,718.33 and 638,355.90

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Solution

The fourth proportional to 1,348,333.86, 2,021,718.33 and 638,355.90 is: 957,163.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,333.86 : 2,021,718.33 = 638,355.90 : x
  2. Step 2: Convert to fraction form
    1,348,333.86/2,021,718.33 = 638,355.90/x
  3. Step 3: Cross multiply
    1,348,333.86x = 2,021,718.33 × 638,355.90
  4. Step 4: Simplify right side
    1,348,333.86x = 1,290,575,824,093.65
  5. Step 5: Solve for x
    x = 1,290,575,824,093.65/1,348,333.86
  6. Step 6: Final answer
    x = 957,163.40

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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.