Finding the Fourth Proportional to 528,546.11, 729,394.08 and 286,828.67
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Solution
The fourth proportional to 528,546.11, 729,394.08 and 286,828.67 is: 395,823.80
Step by Step Solution
- Step 1: Write the proportion equation
528,546.11 : 729,394.08 = 286,828.67 : x - Step 2: Convert to fraction form
528,546.11/729,394.08 = 286,828.67/x - Step 3: Cross multiply
528,546.11x = 729,394.08 × 286,828.67 - Step 4: Simplify right side
528,546.11x = 209,211,130,225.30 - Step 5: Solve for x
x = 209,211,130,225.30/528,546.11 - Step 6: Final answer
x = 395,823.80
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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.