Finding the Fourth Proportional to 1,283,903.40, 1,771,764.74 and 710,931.26
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Solution
The fourth proportional to 1,283,903.40, 1,771,764.74 and 710,931.26 is: 981,072.98
Step by Step Solution
- Step 1: Write the proportion equation
1,283,903.40 : 1,771,764.74 = 710,931.26 : x - Step 2: Convert to fraction form
1,283,903.40/1,771,764.74 = 710,931.26/x - Step 3: Cross multiply
1,283,903.40x = 1,771,764.74 × 710,931.26 - Step 4: Simplify right side
1,283,903.40x = 1,259,602,939,031.77 - Step 5: Solve for x
x = 1,259,602,939,031.77/1,283,903.40 - Step 6: Final answer
x = 981,072.98
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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.