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Finding the Fourth Proportional to 554,906.16, 765,774 and 300,256.74

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Solution

The fourth proportional to 554,906.16, 765,774 and 300,256.74 is: 414,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,906.16 : 765,774 = 300,256.74 : x
  2. Step 2: Convert to fraction form
    554,906.16/765,774 = 300,256.74/x
  3. Step 3: Cross multiply
    554,906.16x = 765,774 × 300,256.74
  4. Step 4: Simplify right side
    554,906.16x = 229,928,804,816.76
  5. Step 5: Solve for x
    x = 229,928,804,816.76/554,906.16
  6. Step 6: Final answer
    x = 414,356.19

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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.