Finding the Fourth Proportional to 878,587.24, 1,317,381.26 and 345,819.40
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Solution
The fourth proportional to 878,587.24, 1,317,381.26 and 345,819.40 is: 518,532.45
Step by Step Solution
- Step 1: Write the proportion equation
878,587.24 : 1,317,381.26 = 345,819.40 : x - Step 2: Convert to fraction form
878,587.24/1,317,381.26 = 345,819.40/x - Step 3: Cross multiply
878,587.24x = 1,317,381.26 × 345,819.40 - Step 4: Simplify right side
878,587.24x = 455,575,996,904.44 - Step 5: Solve for x
x = 455,575,996,904.44/878,587.24 - Step 6: Final answer
x = 518,532.45
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.