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Finding the Fourth Proportional to 450,187.74, 621,278.98 and 259,262.64

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Solution

The fourth proportional to 450,187.74, 621,278.98 and 259,262.64 is: 357,793.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,187.74 : 621,278.98 = 259,262.64 : x
  2. Step 2: Convert to fraction form
    450,187.74/621,278.98 = 259,262.64/x
  3. Step 3: Cross multiply
    450,187.74x = 621,278.98 × 259,262.64
  4. Step 4: Simplify right side
    450,187.74x = 161,074,427,883.15
  5. Step 5: Solve for x
    x = 161,074,427,883.15/450,187.74
  6. Step 6: Final answer
    x = 357,793.90

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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.