Home / 470,645.18-649,495.37-255,785.26

Finding the Fourth Proportional to 470,645.18, 649,495.37 and 255,785.26

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Solution

The fourth proportional to 470,645.18, 649,495.37 and 255,785.26 is: 352,986.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,645.18 : 649,495.37 = 255,785.26 : x
  2. Step 2: Convert to fraction form
    470,645.18/649,495.37 = 255,785.26/x
  3. Step 3: Cross multiply
    470,645.18x = 649,495.37 × 255,785.26
  4. Step 4: Simplify right side
    470,645.18x = 166,131,337,557.84
  5. Step 5: Solve for x
    x = 166,131,337,557.84/470,645.18
  6. Step 6: Final answer
    x = 352,986.38

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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.