Home / 383,931.90-575,066.79-278,518.50

Finding the Fourth Proportional to 383,931.90, 575,066.79 and 278,518.50

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Solution

The fourth proportional to 383,931.90, 575,066.79 and 278,518.50 is: 417,174.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,931.90 : 575,066.79 = 278,518.50 : x
  2. Step 2: Convert to fraction form
    383,931.90/575,066.79 = 278,518.50/x
  3. Step 3: Cross multiply
    383,931.90x = 575,066.79 × 278,518.50
  4. Step 4: Simplify right side
    383,931.90x = 160,166,739,750.62
  5. Step 5: Solve for x
    x = 160,166,739,750.62/383,931.90
  6. Step 6: Final answer
    x = 417,174.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.