Finding the Fourth Proportional to 687,666.03, 1,031,900.40 and 288,276.09
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Solution
The fourth proportional to 687,666.03, 1,031,900.40 and 288,276.09 is: 432,582.39
Step by Step Solution
- Step 1: Write the proportion equation
687,666.03 : 1,031,900.40 = 288,276.09 : x - Step 2: Convert to fraction form
687,666.03/1,031,900.40 = 288,276.09/x - Step 3: Cross multiply
687,666.03x = 1,031,900.40 × 288,276.09 - Step 4: Simplify right side
687,666.03x = 297,472,212,581.44 - Step 5: Solve for x
x = 297,472,212,581.44/687,666.03 - Step 6: Final answer
x = 432,582.39
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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.