Finding the Fourth Proportional to 690,337.80, 1,035,506.70 and 191,701.80
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Solution
The fourth proportional to 690,337.80, 1,035,506.70 and 191,701.80 is: 287,552.70
Step by Step Solution
- Step 1: Write the proportion equation
690,337.80 : 1,035,506.70 = 191,701.80 : x - Step 2: Convert to fraction form
690,337.80/1,035,506.70 = 191,701.80/x - Step 3: Cross multiply
690,337.80x = 1,035,506.70 × 191,701.80 - Step 4: Simplify right side
690,337.80x = 198,508,498,302.06 - Step 5: Solve for x
x = 198,508,498,302.06/690,337.80 - Step 6: Final answer
x = 287,552.70
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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.