Finding the Fourth Proportional to 687,759.02, 1,031,306.71 and 288,292.53
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Solution
The fourth proportional to 687,759.02, 1,031,306.71 and 288,292.53 is: 432,299.70
Step by Step Solution
- Step 1: Write the proportion equation
687,759.02 : 1,031,306.71 = 288,292.53 : x - Step 2: Convert to fraction form
687,759.02/1,031,306.71 = 288,292.53/x - Step 3: Cross multiply
687,759.02x = 1,031,306.71 × 288,292.53 - Step 4: Simplify right side
687,759.02x = 297,318,020,631.88 - Step 5: Solve for x
x = 297,318,020,631.88/687,759.02 - Step 6: Final answer
x = 432,299.70
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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.