Home / 780,586.74-1,076,815.08-522,474.66

Finding the Fourth Proportional to 780,586.74, 1,076,815.08 and 522,474.66

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Solution

The fourth proportional to 780,586.74, 1,076,815.08 and 522,474.66 is: 720,750.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,586.74 : 1,076,815.08 = 522,474.66 : x
  2. Step 2: Convert to fraction form
    780,586.74/1,076,815.08 = 522,474.66/x
  3. Step 3: Cross multiply
    780,586.74x = 1,076,815.08 × 522,474.66
  4. Step 4: Simplify right side
    780,586.74x = 562,608,592,805.87
  5. Step 5: Solve for x
    x = 562,608,592,805.87/780,586.74
  6. Step 6: Final answer
    x = 720,750.90

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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.