Finding the Fourth Proportional to 4,374,946.80, 6,562,420.20 and 4,206,985.20
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Solution
The fourth proportional to 4,374,946.80, 6,562,420.20 and 4,206,985.20 is: 6,310,477.80
Step by Step Solution
- Step 1: Write the proportion equation
4,374,946.80 : 6,562,420.20 = 4,206,985.20 : x - Step 2: Convert to fraction form
4,374,946.80/6,562,420.20 = 4,206,985.20/x - Step 3: Cross multiply
4,374,946.80x = 6,562,420.20 × 4,206,985.20 - Step 4: Simplify right side
4,374,946.80x = 27,608,004,657,581.04 - Step 5: Solve for x
x = 27,608,004,657,581.04/4,374,946.80 - Step 6: Final answer
x = 6,310,477.80
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1.5x scale
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.