Finding the Fourth Proportional to 1,172,570.64, 1,758,959.64 and 639,862.80
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Solution
The fourth proportional to 1,172,570.64, 1,758,959.64 and 639,862.80 is: 959,850.78
Step by Step Solution
- Step 1: Write the proportion equation
1,172,570.64 : 1,758,959.64 = 639,862.80 : x - Step 2: Convert to fraction form
1,172,570.64/1,758,959.64 = 639,862.80/x - Step 3: Cross multiply
1,172,570.64x = 1,758,959.64 × 639,862.80 - Step 4: Simplify right side
1,172,570.64x = 1,125,492,840,337.39 - Step 5: Solve for x
x = 1,125,492,840,337.39/1,172,570.64 - Step 6: Final answer
x = 959,850.78
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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.