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Finding the Fourth Proportional to 555,018.84, 765,927.36 and 300,372.84

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Solution

The fourth proportional to 555,018.84, 765,927.36 and 300,372.84 is: 414,515.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,018.84 : 765,927.36 = 300,372.84 : x
  2. Step 2: Convert to fraction form
    555,018.84/765,927.36 = 300,372.84/x
  3. Step 3: Cross multiply
    555,018.84x = 765,927.36 × 300,372.84
  4. Step 4: Simplify right side
    555,018.84x = 230,063,776,356.90
  5. Step 5: Solve for x
    x = 230,063,776,356.90/555,018.84
  6. Step 6: Final answer
    x = 414,515.26

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1.5x scale

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.