Finding the Fourth Proportional to 1,979,777.34, 2,730,681.38 and 1,816,958.68
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Solution
The fourth proportional to 1,979,777.34, 2,730,681.38 and 1,816,958.68 is: 2,506,107.70
Step by Step Solution
- Step 1: Write the proportion equation
1,979,777.34 : 2,730,681.38 = 1,816,958.68 : x - Step 2: Convert to fraction form
1,979,777.34/2,730,681.38 = 1,816,958.68/x - Step 3: Cross multiply
1,979,777.34x = 2,730,681.38 × 1,816,958.68 - Step 4: Simplify right side
1,979,777.34x = 4,961,535,235,705.38 - Step 5: Solve for x
x = 4,961,535,235,705.38/1,979,777.34 - Step 6: Final answer
x = 2,506,107.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.