Finding the Fourth Proportional to 1,685,901.28, 2,326,543.68 and 921,955.36
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Solution
The fourth proportional to 1,685,901.28, 2,326,543.68 and 921,955.36 is: 1,272,298.35
Step by Step Solution
- Step 1: Write the proportion equation
1,685,901.28 : 2,326,543.68 = 921,955.36 : x - Step 2: Convert to fraction form
1,685,901.28/2,326,543.68 = 921,955.36/x - Step 3: Cross multiply
1,685,901.28x = 2,326,543.68 × 921,955.36 - Step 4: Simplify right side
1,685,901.28x = 2,144,969,416,050.13 - Step 5: Solve for x
x = 2,144,969,416,050.13/1,685,901.28 - Step 6: Final answer
x = 1,272,298.35
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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.