Finding the Fourth Proportional to 528,205.55, 729,206.08 and 413,239.82
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Solution
The fourth proportional to 528,205.55, 729,206.08 and 413,239.82 is: 570,491.90
Step by Step Solution
- Step 1: Write the proportion equation
528,205.55 : 729,206.08 = 413,239.82 : x - Step 2: Convert to fraction form
528,205.55/729,206.08 = 413,239.82/x - Step 3: Cross multiply
528,205.55x = 729,206.08 × 413,239.82 - Step 4: Simplify right side
528,205.55x = 301,336,984,562.98 - Step 5: Solve for x
x = 301,336,984,562.98/528,205.55 - Step 6: Final answer
x = 570,491.90
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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.