Home / 783,978.36-1,081,937.22-461,903.16

Finding the Fourth Proportional to 783,978.36, 1,081,937.22 and 461,903.16

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Solution

The fourth proportional to 783,978.36, 1,081,937.22 and 461,903.16 is: 637,454.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,978.36 : 1,081,937.22 = 461,903.16 : x
  2. Step 2: Convert to fraction form
    783,978.36/1,081,937.22 = 461,903.16/x
  3. Step 3: Cross multiply
    783,978.36x = 1,081,937.22 × 461,903.16
  4. Step 4: Simplify right side
    783,978.36x = 499,750,220,839.62
  5. Step 5: Solve for x
    x = 499,750,220,839.62/783,978.36
  6. Step 6: Final answer
    x = 637,454.10

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.