Finding the Fourth Proportional to 1,687,299.12, 2,531,320.47 and 489,271.46
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Solution
The fourth proportional to 1,687,299.12, 2,531,320.47 and 489,271.46 is: 734,014.99
Step by Step Solution
- Step 1: Write the proportion equation
1,687,299.12 : 2,531,320.47 = 489,271.46 : x - Step 2: Convert to fraction form
1,687,299.12/2,531,320.47 = 489,271.46/x - Step 3: Cross multiply
1,687,299.12x = 2,531,320.47 × 489,271.46 - Step 4: Simplify right side
1,687,299.12x = 1,238,502,849,428.18 - Step 5: Solve for x
x = 1,238,502,849,428.18/1,687,299.12 - Step 6: Final answer
x = 734,014.99
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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.