Finding the Fourth Proportional to 1,328,031.28, 1,992,064.74 and 417,184.08
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Solution
The fourth proportional to 1,328,031.28, 1,992,064.74 and 417,184.08 is: 625,781.72
Step by Step Solution
- Step 1: Write the proportion equation
1,328,031.28 : 1,992,064.74 = 417,184.08 : x - Step 2: Convert to fraction form
1,328,031.28/1,992,064.74 = 417,184.08/x - Step 3: Cross multiply
1,328,031.28x = 1,992,064.74 × 417,184.08 - Step 4: Simplify right side
1,328,031.28x = 831,057,695,857.34 - Step 5: Solve for x
x = 831,057,695,857.34/1,328,031.28 - Step 6: Final answer
x = 625,781.72
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.