Finding the Fourth Proportional to 4,138,411.60, 6,207,811.80 and 1,298,616.40
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Solution
The fourth proportional to 4,138,411.60, 6,207,811.80 and 1,298,616.40 is: 1,947,985.60
Step by Step Solution
- Step 1: Write the proportion equation
4,138,411.60 : 6,207,811.80 = 1,298,616.40 : x - Step 2: Convert to fraction form
4,138,411.60/6,207,811.80 = 1,298,616.40/x - Step 3: Cross multiply
4,138,411.60x = 6,207,811.80 × 1,298,616.40 - Step 4: Simplify right side
4,138,411.60x = 8,061,566,211,593.52 - Step 5: Solve for x
x = 8,061,566,211,593.52/4,138,411.60 - Step 6: Final answer
x = 1,947,985.60
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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.