Home / 470,123.72-648,752.54-255,258.86

Finding the Fourth Proportional to 470,123.72, 648,752.54 and 255,258.86

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Solution

The fourth proportional to 470,123.72, 648,752.54 and 255,258.86 is: 352,247.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,123.72 : 648,752.54 = 255,258.86 : x
  2. Step 2: Convert to fraction form
    470,123.72/648,752.54 = 255,258.86/x
  3. Step 3: Cross multiply
    470,123.72x = 648,752.54 × 255,258.86
  4. Step 4: Simplify right side
    470,123.72x = 165,599,834,128.09
  5. Step 5: Solve for x
    x = 165,599,834,128.09/470,123.72
  6. Step 6: Final answer
    x = 352,247.35

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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.