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Finding the Fourth Proportional to 452,442.45, 624,214.26 and 289,194.45

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Solution

The fourth proportional to 452,442.45, 624,214.26 and 289,194.45 is: 398,988.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,442.45 : 624,214.26 = 289,194.45 : x
  2. Step 2: Convert to fraction form
    452,442.45/624,214.26 = 289,194.45/x
  3. Step 3: Cross multiply
    452,442.45x = 624,214.26 × 289,194.45
  4. Step 4: Simplify right side
    452,442.45x = 180,519,299,602.86
  5. Step 5: Solve for x
    x = 180,519,299,602.86/452,442.45
  6. Step 6: Final answer
    x = 398,988.42

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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.