Finding the Fourth Proportional to 837,448.70, 1,155,693.84 and 455,478.08
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Solution
The fourth proportional to 837,448.70, 1,155,693.84 and 455,478.08 is: 628,567.71
Step by Step Solution
- Step 1: Write the proportion equation
837,448.70 : 1,155,693.84 = 455,478.08 : x - Step 2: Convert to fraction form
837,448.70/1,155,693.84 = 455,478.08/x - Step 3: Cross multiply
837,448.70x = 1,155,693.84 × 455,478.08 - Step 4: Simplify right side
837,448.70x = 526,393,211,311.03 - Step 5: Solve for x
x = 526,393,211,311.03/837,448.70 - Step 6: Final answer
x = 628,567.71
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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.