Home / 624,176.07-862,244.78-496,688.55

Finding the Fourth Proportional to 624,176.07, 862,244.78 and 496,688.55

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Solution

The fourth proportional to 624,176.07, 862,244.78 and 496,688.55 is: 686,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,176.07 : 862,244.78 = 496,688.55 : x
  2. Step 2: Convert to fraction form
    624,176.07/862,244.78 = 496,688.55/x
  3. Step 3: Cross multiply
    624,176.07x = 862,244.78 × 496,688.55
  4. Step 4: Simplify right side
    624,176.07x = 428,267,109,523.27
  5. Step 5: Solve for x
    x = 428,267,109,523.27/624,176.07
  6. Step 6: Final answer
    x = 686,131.89

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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.