Home / 478,320.60-660,082.37-263,460.67

Finding the Fourth Proportional to 478,320.60, 660,082.37 and 263,460.67

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Solution

The fourth proportional to 478,320.60, 660,082.37 and 263,460.67 is: 363,575.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,320.60 : 660,082.37 = 263,460.67 : x
  2. Step 2: Convert to fraction form
    478,320.60/660,082.37 = 263,460.67/x
  3. Step 3: Cross multiply
    478,320.60x = 660,082.37 × 263,460.67
  4. Step 4: Simplify right side
    478,320.60x = 173,905,743,455.39
  5. Step 5: Solve for x
    x = 173,905,743,455.39/478,320.60
  6. Step 6: Final answer
    x = 363,575.69

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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.