Finding the Fourth Proportional to 900,854.18, 1,241,663.67 and 682,990.71
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Solution
The fourth proportional to 900,854.18, 1,241,663.67 and 682,990.71 is: 941,378.48
Step by Step Solution
- Step 1: Write the proportion equation
900,854.18 : 1,241,663.67 = 682,990.71 : x - Step 2: Convert to fraction form
900,854.18/1,241,663.67 = 682,990.71/x - Step 3: Cross multiply
900,854.18x = 1,241,663.67 × 682,990.71 - Step 4: Simplify right side
900,854.18x = 848,044,741,931.23 - Step 5: Solve for x
x = 848,044,741,931.23/900,854.18 - Step 6: Final answer
x = 941,378.48
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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.