Finding the Fourth Proportional to 986,613.63, 1,361,526.81 and 533,904.63
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Solution
The fourth proportional to 986,613.63, 1,361,526.81 and 533,904.63 is: 736,788.39
Step by Step Solution
- Step 1: Write the proportion equation
986,613.63 : 1,361,526.81 = 533,904.63 : x - Step 2: Convert to fraction form
986,613.63/1,361,526.81 = 533,904.63/x - Step 3: Cross multiply
986,613.63x = 1,361,526.81 × 533,904.63 - Step 4: Simplify right side
986,613.63x = 726,925,460,920.50 - Step 5: Solve for x
x = 726,925,460,920.50/986,613.63 - Step 6: Final answer
x = 736,788.39
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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.