Finding the Fourth Proportional to 528,573.68, 729,437.04 and 286,858.36
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Solution
The fourth proportional to 528,573.68, 729,437.04 and 286,858.36 is: 395,867.45
Step by Step Solution
- Step 1: Write the proportion equation
528,573.68 : 729,437.04 = 286,858.36 : x - Step 2: Convert to fraction form
528,573.68/729,437.04 = 286,858.36/x - Step 3: Cross multiply
528,573.68x = 729,437.04 × 286,858.36 - Step 4: Simplify right side
528,573.68x = 209,245,113,017.65 - Step 5: Solve for x
x = 209,245,113,017.65/528,573.68 - Step 6: Final answer
x = 395,867.45
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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.