Finding the Fourth Proportional to 929,813.60, 1,394,720.40 and 628,663.70
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Solution
The fourth proportional to 929,813.60, 1,394,720.40 and 628,663.70 is: 942,995.55
Step by Step Solution
- Step 1: Write the proportion equation
929,813.60 : 1,394,720.40 = 628,663.70 : x - Step 2: Convert to fraction form
929,813.60/1,394,720.40 = 628,663.70/x - Step 3: Cross multiply
929,813.60x = 1,394,720.40 × 628,663.70 - Step 4: Simplify right side
929,813.60x = 876,810,087,129.48 - Step 5: Solve for x
x = 876,810,087,129.48/929,813.60 - Step 6: Final answer
x = 942,995.55
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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.