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Finding the Fourth Proportional to 505,804.90, 756,475.39 and 450,036.40

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Solution

The fourth proportional to 505,804.90, 756,475.39 and 450,036.40 is: 673,068.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,804.90 : 756,475.39 = 450,036.40 : x
  2. Step 2: Convert to fraction form
    505,804.90/756,475.39 = 450,036.40/x
  3. Step 3: Cross multiply
    505,804.90x = 756,475.39 × 450,036.40
  4. Step 4: Simplify right side
    505,804.90x = 340,441,461,204.20
  5. Step 5: Solve for x
    x = 340,441,461,204.20/505,804.90
  6. Step 6: Final answer
    x = 673,068.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.