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Finding the Fourth Proportional to 889,315.10, 1,333,773 and 409,081.68

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Solution

The fourth proportional to 889,315.10, 1,333,773 and 409,081.68 is: 613,530.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,315.10 : 1,333,773 = 409,081.68 : x
  2. Step 2: Convert to fraction form
    889,315.10/1,333,773 = 409,081.68/x
  3. Step 3: Cross multiply
    889,315.10x = 1,333,773 × 409,081.68
  4. Step 4: Simplify right side
    889,315.10x = 545,622,099,578.64
  5. Step 5: Solve for x
    x = 545,622,099,578.64/889,315.10
  6. Step 6: Final answer
    x = 613,530.68

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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.