Finding the Fourth Proportional to 1,156,312.28, 1,595,691.61 and 640,055.09
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Solution
The fourth proportional to 1,156,312.28, 1,595,691.61 and 640,055.09 is: 883,265.32
Step by Step Solution
- Step 1: Write the proportion equation
1,156,312.28 : 1,595,691.61 = 640,055.09 : x - Step 2: Convert to fraction form
1,156,312.28/1,595,691.61 = 640,055.09/x - Step 3: Cross multiply
1,156,312.28x = 1,595,691.61 × 640,055.09 - Step 4: Simplify right side
1,156,312.28x = 1,021,330,527,472.20 - Step 5: Solve for x
x = 1,021,330,527,472.20/1,156,312.28 - Step 6: Final answer
x = 883,265.32
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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.