Finding the Fourth Proportional to 752,558.12, 1,038,530.88 and 408,394.05
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Solution
The fourth proportional to 752,558.12, 1,038,530.88 and 408,394.05 is: 563,584.15
Step by Step Solution
- Step 1: Write the proportion equation
752,558.12 : 1,038,530.88 = 408,394.05 : x - Step 2: Convert to fraction form
752,558.12/1,038,530.88 = 408,394.05/x - Step 3: Cross multiply
752,558.12x = 1,038,530.88 × 408,394.05 - Step 4: Simplify right side
752,558.12x = 424,129,832,133.26 - Step 5: Solve for x
x = 424,129,832,133.26/752,558.12 - Step 6: Final answer
x = 563,584.15
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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.