Home / 809,403.69-1,116,980.67-446,830.53

Finding the Fourth Proportional to 809,403.69, 1,116,980.67 and 446,830.53

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Solution

The fourth proportional to 809,403.69, 1,116,980.67 and 446,830.53 is: 616,628.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,403.69 : 1,116,980.67 = 446,830.53 : x
  2. Step 2: Convert to fraction form
    809,403.69/1,116,980.67 = 446,830.53/x
  3. Step 3: Cross multiply
    809,403.69x = 1,116,980.67 × 446,830.53
  4. Step 4: Simplify right side
    809,403.69x = 499,101,064,775.86
  5. Step 5: Solve for x
    x = 499,101,064,775.86/809,403.69
  6. Step 6: Final answer
    x = 616,628.11

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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.