Finding the Fourth Proportional to 687,754.84, 1,031,665.06 and 288,408.64
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Solution
The fourth proportional to 687,754.84, 1,031,665.06 and 288,408.64 is: 432,626.71
Step by Step Solution
- Step 1: Write the proportion equation
687,754.84 : 1,031,665.06 = 288,408.64 : x - Step 2: Convert to fraction form
687,754.84/1,031,665.06 = 288,408.64/x - Step 3: Cross multiply
687,754.84x = 1,031,665.06 × 288,408.64 - Step 4: Simplify right side
687,754.84x = 297,541,116,890.12 - Step 5: Solve for x
x = 297,541,116,890.12/687,754.84 - Step 6: Final answer
x = 432,626.71
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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.