Finding the Fourth Proportional to 912,355.48, 1,368,065.94 and 486,134.20
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Solution
The fourth proportional to 912,355.48, 1,368,065.94 and 486,134.20 is: 728,952.32
Step by Step Solution
- Step 1: Write the proportion equation
912,355.48 : 1,368,065.94 = 486,134.20 : x - Step 2: Convert to fraction form
912,355.48/1,368,065.94 = 486,134.20/x - Step 3: Cross multiply
912,355.48x = 1,368,065.94 × 486,134.20 - Step 4: Simplify right side
912,355.48x = 665,063,641,289.15 - Step 5: Solve for x
x = 665,063,641,289.15/912,355.48 - Step 6: Final answer
x = 728,952.32
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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.