Finding the Fourth Proportional to 2,547,854.25, 3,515,974.23 and 1,386,251.07
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Solution
The fourth proportional to 2,547,854.25, 3,515,974.23 and 1,386,251.07 is: 1,912,991.31
Step by Step Solution
- Step 1: Write the proportion equation
2,547,854.25 : 3,515,974.23 = 1,386,251.07 : x - Step 2: Convert to fraction form
2,547,854.25/3,515,974.23 = 1,386,251.07/x - Step 3: Cross multiply
2,547,854.25x = 3,515,974.23 × 1,386,251.07 - Step 4: Simplify right side
2,547,854.25x = 4,874,023,038,429.93 - Step 5: Solve for x
x = 4,874,023,038,429.93/2,547,854.25 - Step 6: Final answer
x = 1,912,991.31
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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.