Finding the Fourth Proportional to 907,385.19, 1,360,290.42 and 457,730.70
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Solution
The fourth proportional to 907,385.19, 1,360,290.42 and 457,730.70 is: 686,198.86
Step by Step Solution
- Step 1: Write the proportion equation
907,385.19 : 1,360,290.42 = 457,730.70 : x - Step 2: Convert to fraction form
907,385.19/1,360,290.42 = 457,730.70/x - Step 3: Cross multiply
907,385.19x = 1,360,290.42 × 457,730.70 - Step 4: Simplify right side
907,385.19x = 622,646,686,149.89 - Step 5: Solve for x
x = 622,646,686,149.89/907,385.19 - Step 6: Final answer
x = 686,198.86
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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.