Finding the Fourth Proportional to 660,613.18, 911,650.77 and 358,807.18
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Solution
The fourth proportional to 660,613.18, 911,650.77 and 358,807.18 is: 495,156.39
Step by Step Solution
- Step 1: Write the proportion equation
660,613.18 : 911,650.77 = 358,807.18 : x - Step 2: Convert to fraction form
660,613.18/911,650.77 = 358,807.18/x - Step 3: Cross multiply
660,613.18x = 911,650.77 × 358,807.18 - Step 4: Simplify right side
660,613.18x = 327,106,835,576.24 - Step 5: Solve for x
x = 327,106,835,576.24/660,613.18 - Step 6: Final answer
x = 495,156.39
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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.