Finding the Fourth Proportional to 1,288,395.95, 1,929,649.67 and 614,949.96
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Solution
The fourth proportional to 1,288,395.95, 1,929,649.67 and 614,949.96 is: 921,019.65
Step by Step Solution
- Step 1: Write the proportion equation
1,288,395.95 : 1,929,649.67 = 614,949.96 : x - Step 2: Convert to fraction form
1,288,395.95/1,929,649.67 = 614,949.96/x - Step 3: Cross multiply
1,288,395.95x = 1,929,649.67 × 614,949.96 - Step 4: Simplify right side
1,288,395.95x = 1,186,637,977,069.58 - Step 5: Solve for x
x = 1,186,637,977,069.58/1,288,395.95 - Step 6: Final answer
x = 921,019.65
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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.