Finding the Fourth Proportional to 1,572,099.49, 2,167,956.07 and 998,143.21
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Solution
The fourth proportional to 1,572,099.49, 2,167,956.07 and 998,143.21 is: 1,376,459.09
Step by Step Solution
- Step 1: Write the proportion equation
1,572,099.49 : 2,167,956.07 = 998,143.21 : x - Step 2: Convert to fraction form
1,572,099.49/2,167,956.07 = 998,143.21/x - Step 3: Cross multiply
1,572,099.49x = 2,167,956.07 × 998,143.21 - Step 4: Simplify right side
1,572,099.49x = 2,163,930,630,848.78 - Step 5: Solve for x
x = 2,163,930,630,848.78/1,572,099.49 - Step 6: Final answer
x = 1,376,459.09
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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.