Finding the Fourth Proportional to 1,107,315.32, 1,528,056.08 and 623,981.84
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Solution
The fourth proportional to 1,107,315.32, 1,528,056.08 and 623,981.84 is: 861,072.93
Step by Step Solution
- Step 1: Write the proportion equation
1,107,315.32 : 1,528,056.08 = 623,981.84 : x - Step 2: Convert to fraction form
1,107,315.32/1,528,056.08 = 623,981.84/x - Step 3: Cross multiply
1,107,315.32x = 1,528,056.08 × 623,981.84 - Step 4: Simplify right side
1,107,315.32x = 953,479,244,421.59 - Step 5: Solve for x
x = 953,479,244,421.59/1,107,315.32 - Step 6: Final answer
x = 861,072.93
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.