Home / 783,984.61-1,082,362.55-493,844.89

Finding the Fourth Proportional to 783,984.61, 1,082,362.55 and 493,844.89

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Solution

The fourth proportional to 783,984.61, 1,082,362.55 and 493,844.89 is: 681,798.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,984.61 : 1,082,362.55 = 493,844.89 : x
  2. Step 2: Convert to fraction form
    783,984.61/1,082,362.55 = 493,844.89/x
  3. Step 3: Cross multiply
    783,984.61x = 1,082,362.55 × 493,844.89
  4. Step 4: Simplify right side
    783,984.61x = 534,519,214,444.87
  5. Step 5: Solve for x
    x = 534,519,214,444.87/783,984.61
  6. Step 6: Final answer
    x = 681,798.10

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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.