Finding the Fourth Proportional to 660,990.24, 912,129.12 and 359,182.08
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Solution
The fourth proportional to 660,990.24, 912,129.12 and 359,182.08 is: 495,650.94
Step by Step Solution
- Step 1: Write the proportion equation
660,990.24 : 912,129.12 = 359,182.08 : x - Step 2: Convert to fraction form
660,990.24/912,129.12 = 359,182.08/x - Step 3: Cross multiply
660,990.24x = 912,129.12 × 359,182.08 - Step 4: Simplify right side
660,990.24x = 327,620,434,550.17 - Step 5: Solve for x
x = 327,620,434,550.17/660,990.24 - Step 6: Final answer
x = 495,650.94
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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.