Finding the Fourth Proportional to 1,331,455.08, 1,996,985.79 and 489,810
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Solution
The fourth proportional to 1,331,455.08, 1,996,985.79 and 489,810 is: 734,642.59
Step by Step Solution
- Step 1: Write the proportion equation
1,331,455.08 : 1,996,985.79 = 489,810 : x - Step 2: Convert to fraction form
1,331,455.08/1,996,985.79 = 489,810/x - Step 3: Cross multiply
1,331,455.08x = 1,996,985.79 × 489,810 - Step 4: Simplify right side
1,331,455.08x = 978,143,609,799.90 - Step 5: Solve for x
x = 978,143,609,799.90/1,331,455.08 - Step 6: Final answer
x = 734,642.59
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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.