Home / 459,025.60-688,538.40-455,915.20

Finding the Fourth Proportional to 459,025.60, 688,538.40 and 455,915.20

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Solution

The fourth proportional to 459,025.60, 688,538.40 and 455,915.20 is: 683,872.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,025.60 : 688,538.40 = 455,915.20 : x
  2. Step 2: Convert to fraction form
    459,025.60/688,538.40 = 455,915.20/x
  3. Step 3: Cross multiply
    459,025.60x = 688,538.40 × 455,915.20
  4. Step 4: Simplify right side
    459,025.60x = 313,915,122,343.68
  5. Step 5: Solve for x
    x = 313,915,122,343.68/459,025.60
  6. Step 6: Final answer
    x = 683,872.80

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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.