Finding the Fourth Proportional to 1,305,764.49, 1,798,990.88 and 1,010,398.70
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Solution
The fourth proportional to 1,305,764.49, 1,798,990.88 and 1,010,398.70 is: 1,392,056.58
Step by Step Solution
- Step 1: Write the proportion equation
1,305,764.49 : 1,798,990.88 = 1,010,398.70 : x - Step 2: Convert to fraction form
1,305,764.49/1,798,990.88 = 1,010,398.70/x - Step 3: Cross multiply
1,305,764.49x = 1,798,990.88 × 1,010,398.70 - Step 4: Simplify right side
1,305,764.49x = 1,817,698,046,463.86 - Step 5: Solve for x
x = 1,817,698,046,463.86/1,305,764.49 - Step 6: Final answer
x = 1,392,056.58
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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.