Finding the Fourth Proportional to 778,529.80, 1,167,794.70 and 424,235.80
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Solution
The fourth proportional to 778,529.80, 1,167,794.70 and 424,235.80 is: 636,353.70
Step by Step Solution
- Step 1: Write the proportion equation
778,529.80 : 1,167,794.70 = 424,235.80 : x - Step 2: Convert to fraction form
778,529.80/1,167,794.70 = 424,235.80/x - Step 3: Cross multiply
778,529.80x = 1,167,794.70 × 424,235.80 - Step 4: Simplify right side
778,529.80x = 495,420,318,790.26 - Step 5: Solve for x
x = 495,420,318,790.26/778,529.80 - Step 6: Final answer
x = 636,353.70
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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.