Finding the Fourth Proportional to 870,989.96, 1,201,966.14 and 489,024.95
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Solution
The fourth proportional to 870,989.96, 1,201,966.14 and 489,024.95 is: 674,854.43
Step by Step Solution
- Step 1: Write the proportion equation
870,989.96 : 1,201,966.14 = 489,024.95 : x - Step 2: Convert to fraction form
870,989.96/1,201,966.14 = 489,024.95/x - Step 3: Cross multiply
870,989.96x = 1,201,966.14 × 489,024.95 - Step 4: Simplify right side
870,989.96x = 587,791,431,515.19 - Step 5: Solve for x
x = 587,791,431,515.19/870,989.96 - Step 6: Final answer
x = 674,854.43
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1.5x scale
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.