Finding the Fourth Proportional to 1,029,819.53, 1,421,235.15 and 571,077.99
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Solution
The fourth proportional to 1,029,819.53, 1,421,235.15 and 571,077.99 is: 788,134.32
Step by Step Solution
- Step 1: Write the proportion equation
1,029,819.53 : 1,421,235.15 = 571,077.99 : x - Step 2: Convert to fraction form
1,029,819.53/1,421,235.15 = 571,077.99/x - Step 3: Cross multiply
1,029,819.53x = 1,421,235.15 × 571,077.99 - Step 4: Simplify right side
1,029,819.53x = 811,636,109,923.96 - Step 5: Solve for x
x = 811,636,109,923.96/1,029,819.53 - Step 6: Final answer
x = 788,134.32
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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.