Finding the Fourth Proportional to 1,185,815.68, 1,636,426.19 and 641,951.48
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Solution
The fourth proportional to 1,185,815.68, 1,636,426.19 and 641,951.48 is: 885,893.35
Step by Step Solution
- Step 1: Write the proportion equation
1,185,815.68 : 1,636,426.19 = 641,951.48 : x - Step 2: Convert to fraction form
1,185,815.68/1,636,426.19 = 641,951.48/x - Step 3: Cross multiply
1,185,815.68x = 1,636,426.19 × 641,951.48 - Step 4: Simplify right side
1,185,815.68x = 1,050,506,220,277.21 - Step 5: Solve for x
x = 1,050,506,220,277.21/1,185,815.68 - Step 6: Final answer
x = 885,893.35
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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.