Finding the Fourth Proportional to 1,429,720.17, 1,973,020.46 and 817,879.65
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Solution
The fourth proportional to 1,429,720.17, 1,973,020.46 and 817,879.65 is: 1,128,677.70
Step by Step Solution
- Step 1: Write the proportion equation
1,429,720.17 : 1,973,020.46 = 817,879.65 : x - Step 2: Convert to fraction form
1,429,720.17/1,973,020.46 = 817,879.65/x - Step 3: Cross multiply
1,429,720.17x = 1,973,020.46 × 817,879.65 - Step 4: Simplify right side
1,429,720.17x = 1,613,693,279,178.24 - Step 5: Solve for x
x = 1,613,693,279,178.24/1,429,720.17 - Step 6: Final answer
x = 1,128,677.70
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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.