Finding the Fourth Proportional to 1,188,903.68, 1,640,687.10 and 679,617
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Solution
The fourth proportional to 1,188,903.68, 1,640,687.10 and 679,617 is: 937,871.47
Step by Step Solution
- Step 1: Write the proportion equation
1,188,903.68 : 1,640,687.10 = 679,617 : x - Step 2: Convert to fraction form
1,188,903.68/1,640,687.10 = 679,617/x - Step 3: Cross multiply
1,188,903.68x = 1,640,687.10 × 679,617 - Step 4: Simplify right side
1,188,903.68x = 1,115,038,844,840.70 - Step 5: Solve for x
x = 1,115,038,844,840.70/1,188,903.68 - Step 6: Final answer
x = 937,871.47
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.