Home / 869,914.02-1,200,478.84-482,787.87

Finding the Fourth Proportional to 869,914.02, 1,200,478.84 and 482,787.87

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Solution

The fourth proportional to 869,914.02, 1,200,478.84 and 482,787.87 is: 666,245.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,914.02 : 1,200,478.84 = 482,787.87 : x
  2. Step 2: Convert to fraction form
    869,914.02/1,200,478.84 = 482,787.87/x
  3. Step 3: Cross multiply
    869,914.02x = 1,200,478.84 × 482,787.87
  4. Step 4: Simplify right side
    869,914.02x = 579,576,622,143.67
  5. Step 5: Solve for x
    x = 579,576,622,143.67/869,914.02
  6. Step 6: Final answer
    x = 666,245.87

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1.5x scale

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.