Finding the Fourth Proportional to 879,808.48, 1,319,712.24 and 318,842.08
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Solution
The fourth proportional to 879,808.48, 1,319,712.24 and 318,842.08 is: 478,262.95
Step by Step Solution
- Step 1: Write the proportion equation
879,808.48 : 1,319,712.24 = 318,842.08 : x - Step 2: Convert to fraction form
879,808.48/1,319,712.24 = 318,842.08/x - Step 3: Cross multiply
879,808.48x = 1,319,712.24 × 318,842.08 - Step 4: Simplify right side
879,808.48x = 420,779,795,603.06 - Step 5: Solve for x
x = 420,779,795,603.06/879,808.48 - Step 6: Final answer
x = 478,262.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.