Finding the Fourth Proportional to 1,569,717.60, 2,165,547.84 and 987,909.18
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Solution
The fourth proportional to 1,569,717.60, 2,165,547.84 and 987,909.18 is: 1,362,897.75
Step by Step Solution
- Step 1: Write the proportion equation
1,569,717.60 : 2,165,547.84 = 987,909.18 : x - Step 2: Convert to fraction form
1,569,717.60/2,165,547.84 = 987,909.18/x - Step 3: Cross multiply
1,569,717.60x = 2,165,547.84 × 987,909.18 - Step 4: Simplify right side
1,569,717.60x = 2,139,364,590,865.17 - Step 5: Solve for x
x = 2,139,364,590,865.17/1,569,717.60 - Step 6: Final answer
x = 1,362,897.75
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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.