Finding the Fourth Proportional to 1,306,986.12, 1,803,429.30 and 816,897.84
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Solution
The fourth proportional to 1,306,986.12, 1,803,429.30 and 816,897.84 is: 1,127,186.80
Step by Step Solution
- Step 1: Write the proportion equation
1,306,986.12 : 1,803,429.30 = 816,897.84 : x - Step 2: Convert to fraction form
1,306,986.12/1,803,429.30 = 816,897.84/x - Step 3: Cross multiply
1,306,986.12x = 1,803,429.30 × 816,897.84 - Step 4: Simplify right side
1,306,986.12x = 1,473,217,499,762.71 - Step 5: Solve for x
x = 1,473,217,499,762.71/1,306,986.12 - Step 6: Final answer
x = 1,127,186.80
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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.