Finding the Fourth Proportional to 828,355.41, 1,240,909.27 and 429,257.98
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Solution
The fourth proportional to 828,355.41, 1,240,909.27 and 429,257.98 is: 643,045.49
Step by Step Solution
- Step 1: Write the proportion equation
828,355.41 : 1,240,909.27 = 429,257.98 : x - Step 2: Convert to fraction form
828,355.41/1,240,909.27 = 429,257.98/x - Step 3: Cross multiply
828,355.41x = 1,240,909.27 × 429,257.98 - Step 4: Simplify right side
828,355.41x = 532,670,207,081.47 - Step 5: Solve for x
x = 532,670,207,081.47/828,355.41 - Step 6: Final answer
x = 643,045.49
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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.