Home / 858,643.10-1,287,964.65-504,349.10

Finding the Fourth Proportional to 858,643.10, 1,287,964.65 and 504,349.10

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Solution

The fourth proportional to 858,643.10, 1,287,964.65 and 504,349.10 is: 756,523.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,643.10 : 1,287,964.65 = 504,349.10 : x
  2. Step 2: Convert to fraction form
    858,643.10/1,287,964.65 = 504,349.10/x
  3. Step 3: Cross multiply
    858,643.10x = 1,287,964.65 × 504,349.10
  4. Step 4: Simplify right side
    858,643.10x = 649,583,812,059.32
  5. Step 5: Solve for x
    x = 649,583,812,059.32/858,643.10
  6. Step 6: Final answer
    x = 756,523.65

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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.