Finding the Fourth Proportional to 1,272,543.42, 1,756,143.45 and 699,598.02
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Solution
The fourth proportional to 1,272,543.42, 1,756,143.45 and 699,598.02 is: 965,463.70
Step by Step Solution
- Step 1: Write the proportion equation
1,272,543.42 : 1,756,143.45 = 699,598.02 : x - Step 2: Convert to fraction form
1,272,543.42/1,756,143.45 = 699,598.02/x - Step 3: Cross multiply
1,272,543.42x = 1,756,143.45 × 699,598.02 - Step 4: Simplify right side
1,272,543.42x = 1,228,594,480,455.97 - Step 5: Solve for x
x = 1,228,594,480,455.97/1,272,543.42 - Step 6: Final answer
x = 965,463.70
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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.