Finding the Fourth Proportional to 1,312,316.08, 1,810,996.20 and 708,704.08
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Solution
The fourth proportional to 1,312,316.08, 1,810,996.20 and 708,704.08 is: 978,011.64
Step by Step Solution
- Step 1: Write the proportion equation
1,312,316.08 : 1,810,996.20 = 708,704.08 : x - Step 2: Convert to fraction form
1,312,316.08/1,810,996.20 = 708,704.08/x - Step 3: Cross multiply
1,312,316.08x = 1,810,996.20 × 708,704.08 - Step 4: Simplify right side
1,312,316.08x = 1,283,460,395,804.50 - Step 5: Solve for x
x = 1,283,460,395,804.50/1,312,316.08 - Step 6: Final answer
x = 978,011.64
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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.