Finding the Fourth Proportional to 1,628,515.70, 2,445,106.35 and 919,927.70
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Solution
The fourth proportional to 1,628,515.70, 2,445,106.35 and 919,927.70 is: 1,381,209.32
Step by Step Solution
- Step 1: Write the proportion equation
1,628,515.70 : 2,445,106.35 = 919,927.70 : x - Step 2: Convert to fraction form
1,628,515.70/2,445,106.35 = 919,927.70/x - Step 3: Cross multiply
1,628,515.70x = 2,445,106.35 × 919,927.70 - Step 4: Simplify right side
1,628,515.70x = 2,249,321,060,810.90 - Step 5: Solve for x
x = 2,249,321,060,810.90/1,628,515.70 - Step 6: Final answer
x = 1,381,209.32
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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.