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Finding the Fourth Proportional to 459,634.69, 634,121.75 and 285,124.24

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Solution

The fourth proportional to 459,634.69, 634,121.75 and 285,124.24 is: 393,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,634.69 : 634,121.75 = 285,124.24 : x
  2. Step 2: Convert to fraction form
    459,634.69/634,121.75 = 285,124.24/x
  3. Step 3: Cross multiply
    459,634.69x = 634,121.75 × 285,124.24
  4. Step 4: Simplify right side
    459,634.69x = 180,803,477,439.99
  5. Step 5: Solve for x
    x = 180,803,477,439.99/459,634.69
  6. Step 6: Final answer
    x = 393,363.43

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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.