Home / 858,907.46-1,287,832.03-290,234.82

Finding the Fourth Proportional to 858,907.46, 1,287,832.03 and 290,234.82

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Solution

The fourth proportional to 858,907.46, 1,287,832.03 and 290,234.82 is: 435,173.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,907.46 : 1,287,832.03 = 290,234.82 : x
  2. Step 2: Convert to fraction form
    858,907.46/1,287,832.03 = 290,234.82/x
  3. Step 3: Cross multiply
    858,907.46x = 1,287,832.03 × 290,234.82
  4. Step 4: Simplify right side
    858,907.46x = 373,773,697,417.29
  5. Step 5: Solve for x
    x = 373,773,697,417.29/858,907.46
  6. Step 6: Final answer
    x = 435,173.42

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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.