Finding the Fourth Proportional to 687,557.03, 1,031,390.68 and 261,297.06
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Solution
The fourth proportional to 687,557.03, 1,031,390.68 and 261,297.06 is: 391,966.55
Step by Step Solution
- Step 1: Write the proportion equation
687,557.03 : 1,031,390.68 = 261,297.06 : x - Step 2: Convert to fraction form
687,557.03/1,031,390.68 = 261,297.06/x - Step 3: Cross multiply
687,557.03x = 1,031,390.68 × 261,297.06 - Step 4: Simplify right side
687,557.03x = 269,499,357,434.20 - Step 5: Solve for x
x = 269,499,357,434.20/687,557.03 - Step 6: Final answer
x = 391,966.55
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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.