Finding the Fourth Proportional to 986,355.48, 1,361,164.84 and 533,636.76
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Solution
The fourth proportional to 986,355.48, 1,361,164.84 and 533,636.76 is: 736,415.63
Step by Step Solution
- Step 1: Write the proportion equation
986,355.48 : 1,361,164.84 = 533,636.76 : x - Step 2: Convert to fraction form
986,355.48/1,361,164.84 = 533,636.76/x - Step 3: Cross multiply
986,355.48x = 1,361,164.84 × 533,636.76 - Step 4: Simplify right side
986,355.48x = 726,367,595,043.52 - Step 5: Solve for x
x = 726,367,595,043.52/986,355.48 - Step 6: Final answer
x = 736,415.63
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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.