Home / 649,379.42-895,563.30-407,684.53

Finding the Fourth Proportional to 649,379.42, 895,563.30 and 407,684.53

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Solution

The fourth proportional to 649,379.42, 895,563.30 and 407,684.53 is: 562,240.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,379.42 : 895,563.30 = 407,684.53 : x
  2. Step 2: Convert to fraction form
    649,379.42/895,563.30 = 407,684.53/x
  3. Step 3: Cross multiply
    649,379.42x = 895,563.30 × 407,684.53
  4. Step 4: Simplify right side
    649,379.42x = 365,107,303,045.75
  5. Step 5: Solve for x
    x = 365,107,303,045.75/649,379.42
  6. Step 6: Final answer
    x = 562,240.34

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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.