Home / 470,749.32-649,638.48-255,890.04

Finding the Fourth Proportional to 470,749.32, 649,638.48 and 255,890.04

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Solution

The fourth proportional to 470,749.32, 649,638.48 and 255,890.04 is: 353,130.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,749.32 : 649,638.48 = 255,890.04 : x
  2. Step 2: Convert to fraction form
    470,749.32/649,638.48 = 255,890.04/x
  3. Step 3: Cross multiply
    470,749.32x = 649,638.48 × 255,890.04
  4. Step 4: Simplify right side
    470,749.32x = 166,236,016,632.74
  5. Step 5: Solve for x
    x = 166,236,016,632.74/470,749.32
  6. Step 6: Final answer
    x = 353,130.66

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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.