Home / 638,404.02-958,690.70-426,533.43

Finding the Fourth Proportional to 638,404.02, 958,690.70 and 426,533.43

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Solution

The fourth proportional to 638,404.02, 958,690.70 and 426,533.43 is: 640,524.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,404.02 : 958,690.70 = 426,533.43 : x
  2. Step 2: Convert to fraction form
    638,404.02/958,690.70 = 426,533.43/x
  3. Step 3: Cross multiply
    638,404.02x = 958,690.70 × 426,533.43
  4. Step 4: Simplify right side
    638,404.02x = 408,913,632,580.10
  5. Step 5: Solve for x
    x = 408,913,632,580.10/638,404.02
  6. Step 6: Final answer
    x = 640,524.84

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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.