Finding the Fourth Proportional to 1,312,305.74, 1,810,981.94 and 708,693.74
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Solution
The fourth proportional to 1,312,305.74, 1,810,981.94 and 708,693.74 is: 977,997.37
Step by Step Solution
- Step 1: Write the proportion equation
1,312,305.74 : 1,810,981.94 = 708,693.74 : x - Step 2: Convert to fraction form
1,312,305.74/1,810,981.94 = 708,693.74/x - Step 3: Cross multiply
1,312,305.74x = 1,810,981.94 × 708,693.74 - Step 4: Simplify right side
1,312,305.74x = 1,283,431,555,076.15 - Step 5: Solve for x
x = 1,283,431,555,076.15/1,312,305.74 - Step 6: Final answer
x = 977,997.37
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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.