Finding the Fourth Proportional to 627,205.63, 865,551.14 and 340,730.23
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Solution
The fourth proportional to 627,205.63, 865,551.14 and 340,730.23 is: 470,211.72
Step by Step Solution
- Step 1: Write the proportion equation
627,205.63 : 865,551.14 = 340,730.23 : x - Step 2: Convert to fraction form
627,205.63/865,551.14 = 340,730.23/x - Step 3: Cross multiply
627,205.63x = 865,551.14 × 340,730.23 - Step 4: Simplify right side
627,205.63x = 294,919,439,008.96 - Step 5: Solve for x
x = 294,919,439,008.96/627,205.63 - Step 6: Final answer
x = 470,211.72
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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.