Finding the Fourth Proportional to 1,437,664.77, 2,156,128.10 and 426,547.53
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Solution
The fourth proportional to 1,437,664.77, 2,156,128.10 and 426,547.53 is: 639,711.79
Step by Step Solution
- Step 1: Write the proportion equation
1,437,664.77 : 2,156,128.10 = 426,547.53 : x - Step 2: Convert to fraction form
1,437,664.77/2,156,128.10 = 426,547.53/x - Step 3: Cross multiply
1,437,664.77x = 2,156,128.10 × 426,547.53 - Step 4: Simplify right side
1,437,664.77x = 919,691,106,072.77 - Step 5: Solve for x
x = 919,691,106,072.77/1,437,664.77 - Step 6: Final answer
x = 639,711.79
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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.