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Finding the Fourth Proportional to 450,950.40, 621,043.20 and 374,808.96

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Solution

The fourth proportional to 450,950.40, 621,043.20 and 374,808.96 is: 516,182.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,950.40 : 621,043.20 = 374,808.96 : x
  2. Step 2: Convert to fraction form
    450,950.40/621,043.20 = 374,808.96/x
  3. Step 3: Cross multiply
    450,950.40x = 621,043.20 × 374,808.96
  4. Step 4: Simplify right side
    450,950.40x = 232,772,555,907.07
  5. Step 5: Solve for x
    x = 232,772,555,907.07/450,950.40
  6. Step 6: Final answer
    x = 516,182.17

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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.