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Finding the Fourth Proportional to 613,133.58, 919,887.64 and 313,826.23

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Solution

The fourth proportional to 613,133.58, 919,887.64 and 313,826.23 is: 470,835.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,133.58 : 919,887.64 = 313,826.23 : x
  2. Step 2: Convert to fraction form
    613,133.58/919,887.64 = 313,826.23/x
  3. Step 3: Cross multiply
    613,133.58x = 919,887.64 × 313,826.23
  4. Step 4: Simplify right side
    613,133.58x = 288,684,870,450.09
  5. Step 5: Solve for x
    x = 288,684,870,450.09/613,133.58
  6. Step 6: Final answer
    x = 470,835.19

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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.