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Finding the Fourth Proportional to 450,507.93, 621,688.37 and 266,755.73

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Solution

The fourth proportional to 450,507.93, 621,688.37 and 266,755.73 is: 368,115.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,507.93 : 621,688.37 = 266,755.73 : x
  2. Step 2: Convert to fraction form
    450,507.93/621,688.37 = 266,755.73/x
  3. Step 3: Cross multiply
    450,507.93x = 621,688.37 × 266,755.73
  4. Step 4: Simplify right side
    450,507.93x = 165,838,934,026.64
  5. Step 5: Solve for x
    x = 165,838,934,026.64/450,507.93
  6. Step 6: Final answer
    x = 368,115.46

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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.