Finding the Fourth Proportional to 943,281.12, 1,413,976.14 and 438,197.16
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Solution
The fourth proportional to 943,281.12, 1,413,976.14 and 438,197.16 is: 656,856.49
Step by Step Solution
- Step 1: Write the proportion equation
943,281.12 : 1,413,976.14 = 438,197.16 : x - Step 2: Convert to fraction form
943,281.12/1,413,976.14 = 438,197.16/x - Step 3: Cross multiply
943,281.12x = 1,413,976.14 × 438,197.16 - Step 4: Simplify right side
943,281.12x = 619,600,328,855.76 - Step 5: Solve for x
x = 619,600,328,855.76/943,281.12 - Step 6: Final answer
x = 656,856.49
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.