Home / 470,401.85-649,155.11-255,541.92

Finding the Fourth Proportional to 470,401.85, 649,155.11 and 255,541.92

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Solution

The fourth proportional to 470,401.85, 649,155.11 and 255,541.92 is: 352,648.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,401.85 : 649,155.11 = 255,541.92 : x
  2. Step 2: Convert to fraction form
    470,401.85/649,155.11 = 255,541.92/x
  3. Step 3: Cross multiply
    470,401.85x = 649,155.11 × 255,541.92
  4. Step 4: Simplify right side
    470,401.85x = 165,886,341,909.50
  5. Step 5: Solve for x
    x = 165,886,341,909.50/470,401.85
  6. Step 6: Final answer
    x = 352,648.15

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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.