Finding the Fourth Proportional to 1,919,014.53, 2,878,324.20 and 639,483.70
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Solution
The fourth proportional to 1,919,014.53, 2,878,324.20 and 639,483.70 is: 959,159.70
Step by Step Solution
- Step 1: Write the proportion equation
1,919,014.53 : 2,878,324.20 = 639,483.70 : x - Step 2: Convert to fraction form
1,919,014.53/2,878,324.20 = 639,483.70/x - Step 3: Cross multiply
1,919,014.53x = 2,878,324.20 × 639,483.70 - Step 4: Simplify right side
1,919,014.53x = 1,840,641,402,019.95 - Step 5: Solve for x
x = 1,840,641,402,019.95/1,919,014.53 - Step 6: Final answer
x = 959,159.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.