Finding the Fourth Proportional to 2,152,378.90, 2,970,302.97 and 1,185,512.74
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Solution
The fourth proportional to 2,152,378.90, 2,970,302.97 and 1,185,512.74 is: 1,636,018.65
Step by Step Solution
- Step 1: Write the proportion equation
2,152,378.90 : 2,970,302.97 = 1,185,512.74 : x - Step 2: Convert to fraction form
2,152,378.90/2,970,302.97 = 1,185,512.74/x - Step 3: Cross multiply
2,152,378.90x = 2,970,302.97 × 1,185,512.74 - Step 4: Simplify right side
2,152,378.90x = 3,521,332,012,594.84 - Step 5: Solve for x
x = 3,521,332,012,594.84/2,152,378.90 - Step 6: Final answer
x = 1,636,018.65
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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.