Finding the Fourth Proportional to 875,116.21, 1,312,370.70 and 306,484.77
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Solution
The fourth proportional to 875,116.21, 1,312,370.70 and 306,484.77 is: 459,620.82
Step by Step Solution
- Step 1: Write the proportion equation
875,116.21 : 1,312,370.70 = 306,484.77 : x - Step 2: Convert to fraction form
875,116.21/1,312,370.70 = 306,484.77/x - Step 3: Cross multiply
875,116.21x = 1,312,370.70 × 306,484.77 - Step 4: Simplify right side
875,116.21x = 402,221,632,144.24 - Step 5: Solve for x
x = 402,221,632,144.24/875,116.21 - Step 6: Final answer
x = 459,620.82
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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.