Finding the Fourth Proportional to 1,679,612.05, 2,519,416.71 and 417,439.68
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Solution
The fourth proportional to 1,679,612.05, 2,519,416.71 and 417,439.68 is: 626,159.17
Step by Step Solution
- Step 1: Write the proportion equation
1,679,612.05 : 2,519,416.71 = 417,439.68 : x - Step 2: Convert to fraction form
1,679,612.05/2,519,416.71 = 417,439.68/x - Step 3: Cross multiply
1,679,612.05x = 2,519,416.71 × 417,439.68 - Step 4: Simplify right side
1,679,612.05x = 1,051,704,495,761.24 - Step 5: Solve for x
x = 1,051,704,495,761.24/1,679,612.05 - Step 6: Final answer
x = 626,159.17
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1.5x scale
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.