Finding the Fourth Proportional to 687,393.84, 1,030,757.40 and 403,177.20
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Solution
The fourth proportional to 687,393.84, 1,030,757.40 and 403,177.20 is: 604,570.27
Step by Step Solution
- Step 1: Write the proportion equation
687,393.84 : 1,030,757.40 = 403,177.20 : x - Step 2: Convert to fraction form
687,393.84/1,030,757.40 = 403,177.20/x - Step 3: Cross multiply
687,393.84x = 1,030,757.40 × 403,177.20 - Step 4: Simplify right side
687,393.84x = 415,577,878,545.94 - Step 5: Solve for x
x = 415,577,878,545.94/687,393.84 - Step 6: Final answer
x = 604,570.27
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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.