Finding the Fourth Proportional to 1,838,432.16, 2,536,207.20 and 1,074,142.08
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Solution
The fourth proportional to 1,838,432.16, 2,536,207.20 and 1,074,142.08 is: 1,481,831.60
Step by Step Solution
- Step 1: Write the proportion equation
1,838,432.16 : 2,536,207.20 = 1,074,142.08 : x - Step 2: Convert to fraction form
1,838,432.16/2,536,207.20 = 1,074,142.08/x - Step 3: Cross multiply
1,838,432.16x = 2,536,207.20 × 1,074,142.08 - Step 4: Simplify right side
1,838,432.16x = 2,724,246,877,118.98 - Step 5: Solve for x
x = 2,724,246,877,118.98/1,838,432.16 - Step 6: Final answer
x = 1,481,831.60
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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.