Finding the Fourth Proportional to 1,472,215.98, 2,031,730.11 and 827,838.30
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Solution
The fourth proportional to 1,472,215.98, 2,031,730.11 and 827,838.30 is: 1,142,457.37
Step by Step Solution
- Step 1: Write the proportion equation
1,472,215.98 : 2,031,730.11 = 827,838.30 : x - Step 2: Convert to fraction form
1,472,215.98/2,031,730.11 = 827,838.30/x - Step 3: Cross multiply
1,472,215.98x = 2,031,730.11 × 827,838.30 - Step 4: Simplify right side
1,472,215.98x = 1,681,944,000,321.21 - Step 5: Solve for x
x = 1,681,944,000,321.21/1,472,215.98 - Step 6: Final answer
x = 1,142,457.37
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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.