Finding the Fourth Proportional to 1,335,266.76, 1,842,668.12 and 731,641.80
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Solution
The fourth proportional to 1,335,266.76, 1,842,668.12 and 731,641.80 is: 1,009,665.68
Step by Step Solution
- Step 1: Write the proportion equation
1,335,266.76 : 1,842,668.12 = 731,641.80 : x - Step 2: Convert to fraction form
1,335,266.76/1,842,668.12 = 731,641.80/x - Step 3: Cross multiply
1,335,266.76x = 1,842,668.12 × 731,641.80 - Step 4: Simplify right side
1,335,266.76x = 1,348,173,020,119.42 - Step 5: Solve for x
x = 1,348,173,020,119.42/1,335,266.76 - Step 6: Final answer
x = 1,009,665.68
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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.