Finding the Fourth Proportional to 1,668,990.80, 2,303,207.30 and 905,044.97
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Solution
The fourth proportional to 1,668,990.80, 2,303,207.30 and 905,044.97 is: 1,248,962.06
Step by Step Solution
- Step 1: Write the proportion equation
1,668,990.80 : 2,303,207.30 = 905,044.97 : x - Step 2: Convert to fraction form
1,668,990.80/2,303,207.30 = 905,044.97/x - Step 3: Cross multiply
1,668,990.80x = 2,303,207.30 × 905,044.97 - Step 4: Simplify right side
1,668,990.80x = 2,084,506,189,752.91 - Step 5: Solve for x
x = 2,084,506,189,752.91/1,668,990.80 - Step 6: Final answer
x = 1,248,962.06
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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.