Finding the Fourth Proportional to 1,261,305.08, 1,740,605.88 and 688,358
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Solution
The fourth proportional to 1,261,305.08, 1,740,605.88 and 688,358 is: 949,936.70
Step by Step Solution
- Step 1: Write the proportion equation
1,261,305.08 : 1,740,605.88 = 688,358 : x - Step 2: Convert to fraction form
1,261,305.08/1,740,605.88 = 688,358/x - Step 3: Cross multiply
1,261,305.08x = 1,740,605.88 × 688,358 - Step 4: Simplify right side
1,261,305.08x = 1,198,159,982,345.04 - Step 5: Solve for x
x = 1,198,159,982,345.04/1,261,305.08 - Step 6: Final answer
x = 949,936.70
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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.