Finding the Fourth Proportional to 778,467.80, 1,167,701.70 and 424,173.80
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Solution
The fourth proportional to 778,467.80, 1,167,701.70 and 424,173.80 is: 636,260.70
Step by Step Solution
- Step 1: Write the proportion equation
778,467.80 : 1,167,701.70 = 424,173.80 : x - Step 2: Convert to fraction form
778,467.80/1,167,701.70 = 424,173.80/x - Step 3: Cross multiply
778,467.80x = 1,167,701.70 × 424,173.80 - Step 4: Simplify right side
778,467.80x = 495,308,467,355.46 - Step 5: Solve for x
x = 495,308,467,355.46/778,467.80 - Step 6: Final answer
x = 636,260.70
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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.