Finding the Fourth Proportional to 1,239,905.02, 1,711,125.63 and 688,622.88
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Solution
The fourth proportional to 1,239,905.02, 1,711,125.63 and 688,622.88 is: 950,331.07
Step by Step Solution
- Step 1: Write the proportion equation
1,239,905.02 : 1,711,125.63 = 688,622.88 : x - Step 2: Convert to fraction form
1,239,905.02/1,711,125.63 = 688,622.88/x - Step 3: Cross multiply
1,239,905.02x = 1,711,125.63 × 688,622.88 - Step 4: Simplify right side
1,239,905.02x = 1,178,320,259,372.41 - Step 5: Solve for x
x = 1,178,320,259,372.41/1,239,905.02 - Step 6: Final answer
x = 950,331.07
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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.