Finding the Fourth Proportional to 1,124,117.70, 1,685,593.35 and 413,780.10
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Solution
The fourth proportional to 1,124,117.70, 1,685,593.35 and 413,780.10 is: 620,455.48
Step by Step Solution
- Step 1: Write the proportion equation
1,124,117.70 : 1,685,593.35 = 413,780.10 : x - Step 2: Convert to fraction form
1,124,117.70/1,685,593.35 = 413,780.10/x - Step 3: Cross multiply
1,124,117.70x = 1,685,593.35 × 413,780.10 - Step 4: Simplify right side
1,124,117.70x = 697,464,984,922.34 - Step 5: Solve for x
x = 697,464,984,922.34/1,124,117.70 - Step 6: Final answer
x = 620,455.48
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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.