Home / 759,635.76-1,139,607-338,911.68

Finding the Fourth Proportional to 759,635.76, 1,139,607 and 338,911.68

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Solution

The fourth proportional to 759,635.76, 1,139,607 and 338,911.68 is: 508,435.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,635.76 : 1,139,607 = 338,911.68 : x
  2. Step 2: Convert to fraction form
    759,635.76/1,139,607 = 338,911.68/x
  3. Step 3: Cross multiply
    759,635.76x = 1,139,607 × 338,911.68
  4. Step 4: Simplify right side
    759,635.76x = 386,226,122,909.76
  5. Step 5: Solve for x
    x = 386,226,122,909.76/759,635.76
  6. Step 6: Final answer
    x = 508,435.94

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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.