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Finding the Fourth Proportional to 488,939.40, 733,409.10 and 472,609.80

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Solution

The fourth proportional to 488,939.40, 733,409.10 and 472,609.80 is: 708,914.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,939.40 : 733,409.10 = 472,609.80 : x
  2. Step 2: Convert to fraction form
    488,939.40/733,409.10 = 472,609.80/x
  3. Step 3: Cross multiply
    488,939.40x = 733,409.10 × 472,609.80
  4. Step 4: Simplify right side
    488,939.40x = 346,616,328,069.18
  5. Step 5: Solve for x
    x = 346,616,328,069.18/488,939.40
  6. Step 6: Final answer
    x = 708,914.70

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1.5x scale

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.