Finding the Fourth Proportional to 1,690,815.88, 2,537,254.14 and 679,748.20
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Solution
The fourth proportional to 1,690,815.88, 2,537,254.14 and 679,748.20 is: 1,020,036.51
Step by Step Solution
- Step 1: Write the proportion equation
1,690,815.88 : 2,537,254.14 = 679,748.20 : x - Step 2: Convert to fraction form
1,690,815.88/2,537,254.14 = 679,748.20/x - Step 3: Cross multiply
1,690,815.88x = 2,537,254.14 × 679,748.20 - Step 4: Simplify right side
1,690,815.88x = 1,724,693,934,607.55 - Step 5: Solve for x
x = 1,724,693,934,607.55/1,690,815.88 - Step 6: Final answer
x = 1,020,036.51
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.