Finding the Fourth Proportional to 1,537,855.84, 2,122,301.12 and 849,563.20
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Solution
The fourth proportional to 1,537,855.84, 2,122,301.12 and 849,563.20 is: 1,172,430.40
Step by Step Solution
- Step 1: Write the proportion equation
1,537,855.84 : 2,122,301.12 = 849,563.20 : x - Step 2: Convert to fraction form
1,537,855.84/2,122,301.12 = 849,563.20/x - Step 3: Cross multiply
1,537,855.84x = 2,122,301.12 × 849,563.20 - Step 4: Simplify right side
1,537,855.84x = 1,803,028,930,870.78 - Step 5: Solve for x
x = 1,803,028,930,870.78/1,537,855.84 - Step 6: Final answer
x = 1,172,430.40
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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.