Finding the Fourth Proportional to 879,296.08, 1,213,430.72 and 476,888.08
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Solution
The fourth proportional to 879,296.08, 1,213,430.72 and 476,888.08 is: 658,106.71
Step by Step Solution
- Step 1: Write the proportion equation
879,296.08 : 1,213,430.72 = 476,888.08 : x - Step 2: Convert to fraction form
879,296.08/1,213,430.72 = 476,888.08/x - Step 3: Cross multiply
879,296.08x = 1,213,430.72 × 476,888.08 - Step 4: Simplify right side
879,296.08x = 578,670,646,273.82 - Step 5: Solve for x
x = 578,670,646,273.82/879,296.08 - Step 6: Final answer
x = 658,106.71
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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.