Home / 783,664.91-1,081,456.62-456,991.10

Finding the Fourth Proportional to 783,664.91, 1,081,456.62 and 456,991.10

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Solution

The fourth proportional to 783,664.91, 1,081,456.62 and 456,991.10 is: 630,647.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,664.91 : 1,081,456.62 = 456,991.10 : x
  2. Step 2: Convert to fraction form
    783,664.91/1,081,456.62 = 456,991.10/x
  3. Step 3: Cross multiply
    783,664.91x = 1,081,456.62 × 456,991.10
  4. Step 4: Simplify right side
    783,664.91x = 494,216,050,376.08
  5. Step 5: Solve for x
    x = 494,216,050,376.08/783,664.91
  6. Step 6: Final answer
    x = 630,647.16

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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.