Finding the Fourth Proportional to 4,086,988.42, 6,130,465.35 and 1,247,090.98
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Solution
The fourth proportional to 4,086,988.42, 6,130,465.35 and 1,247,090.98 is: 1,870,631.20
Step by Step Solution
- Step 1: Write the proportion equation
4,086,988.42 : 6,130,465.35 = 1,247,090.98 : x - Step 2: Convert to fraction form
4,086,988.42/6,130,465.35 = 1,247,090.98/x - Step 3: Cross multiply
4,086,988.42x = 6,130,465.35 × 1,247,090.98 - Step 4: Simplify right side
4,086,988.42x = 7,645,248,041,187.54 - Step 5: Solve for x
x = 7,645,248,041,187.54/4,086,988.42 - Step 6: Final answer
x = 1,870,631.20
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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.