Finding the Fourth Proportional to 1,988,319.39, 2,979,698.95 and 1,075,531.20
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Solution
The fourth proportional to 1,988,319.39, 2,979,698.95 and 1,075,531.20 is: 1,611,792.96
Step by Step Solution
- Step 1: Write the proportion equation
1,988,319.39 : 2,979,698.95 = 1,075,531.20 : x - Step 2: Convert to fraction form
1,988,319.39/2,979,698.95 = 1,075,531.20/x - Step 3: Cross multiply
1,988,319.39x = 2,979,698.95 × 1,075,531.20 - Step 4: Simplify right side
1,988,319.39x = 3,204,759,187,332.24 - Step 5: Solve for x
x = 3,204,759,187,332.24/1,988,319.39 - Step 6: Final answer
x = 1,611,792.96
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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.