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Finding the Fourth Proportional to 450,421.30, 621,520.11 and 269,094.82

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Solution

The fourth proportional to 450,421.30, 621,520.11 and 269,094.82 is: 371,314.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,421.30 : 621,520.11 = 269,094.82 : x
  2. Step 2: Convert to fraction form
    450,421.30/621,520.11 = 269,094.82/x
  3. Step 3: Cross multiply
    450,421.30x = 621,520.11 × 269,094.82
  4. Step 4: Simplify right side
    450,421.30x = 167,247,842,126.83
  5. Step 5: Solve for x
    x = 167,247,842,126.83/450,421.30
  6. Step 6: Final answer
    x = 371,314.24

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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.