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Finding the Fourth Proportional to 450,004, 621,018.48 and 248,812.96

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Solution

The fourth proportional to 450,004, 621,018.48 and 248,812.96 is: 343,369.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,004 : 621,018.48 = 248,812.96 : x
  2. Step 2: Convert to fraction form
    450,004/621,018.48 = 248,812.96/x
  3. Step 3: Cross multiply
    450,004x = 621,018.48 × 248,812.96
  4. Step 4: Simplify right side
    450,004x = 154,517,446,223.50
  5. Step 5: Solve for x
    x = 154,517,446,223.50/450,004
  6. Step 6: Final answer
    x = 343,369.05

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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.