Finding the Fourth Proportional to 1,238,602.05, 1,857,905.91 and 340,056.09
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Solution
The fourth proportional to 1,238,602.05, 1,857,905.91 and 340,056.09 is: 510,084.91
Step by Step Solution
- Step 1: Write the proportion equation
1,238,602.05 : 1,857,905.91 = 340,056.09 : x - Step 2: Convert to fraction form
1,238,602.05/1,857,905.91 = 340,056.09/x - Step 3: Cross multiply
1,238,602.05x = 1,857,905.91 × 340,056.09 - Step 4: Simplify right side
1,238,602.05x = 631,792,219,342.49 - Step 5: Solve for x
x = 631,792,219,342.49/1,238,602.05 - Step 6: Final answer
x = 510,084.91
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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.