Finding the Fourth Proportional to 928,868.70, 1,391,229.45 and 717,822.30
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Solution
The fourth proportional to 928,868.70, 1,391,229.45 and 717,822.30 is: 1,075,130.99
Step by Step Solution
- Step 1: Write the proportion equation
928,868.70 : 1,391,229.45 = 717,822.30 : x - Step 2: Convert to fraction form
928,868.70/1,391,229.45 = 717,822.30/x - Step 3: Cross multiply
928,868.70x = 1,391,229.45 × 717,822.30 - Step 4: Simplify right side
928,868.70x = 998,655,523,626.74 - Step 5: Solve for x
x = 998,655,523,626.74/928,868.70 - Step 6: Final answer
x = 1,075,130.99
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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.