Finding the Fourth Proportional to 1,421,056.24, 2,133,101.08 and 611,841.12
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Solution
The fourth proportional to 1,421,056.24, 2,133,101.08 and 611,841.12 is: 918,414.71
Step by Step Solution
- Step 1: Write the proportion equation
1,421,056.24 : 2,133,101.08 = 611,841.12 : x - Step 2: Convert to fraction form
1,421,056.24/2,133,101.08 = 611,841.12/x - Step 3: Cross multiply
1,421,056.24x = 2,133,101.08 × 611,841.12 - Step 4: Simplify right side
1,421,056.24x = 1,305,118,953,860.41 - Step 5: Solve for x
x = 1,305,118,953,860.41/1,421,056.24 - Step 6: Final answer
x = 918,414.71
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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.