Finding the Fourth Proportional to 1,686,034.18, 2,529,881.65 and 787,345.31
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Solution
The fourth proportional to 1,686,034.18, 2,529,881.65 and 787,345.31 is: 1,181,405.73
Step by Step Solution
- Step 1: Write the proportion equation
1,686,034.18 : 2,529,881.65 = 787,345.31 : x - Step 2: Convert to fraction form
1,686,034.18/2,529,881.65 = 787,345.31/x - Step 3: Cross multiply
1,686,034.18x = 2,529,881.65 × 787,345.31 - Step 4: Simplify right side
1,686,034.18x = 1,991,890,437,364.79 - Step 5: Solve for x
x = 1,991,890,437,364.79/1,686,034.18 - Step 6: Final answer
x = 1,181,405.73
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.