Finding the Fourth Proportional to 1,353,562.12, 1,867,915.75 and 749,950.12
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Solution
The fourth proportional to 1,353,562.12, 1,867,915.75 and 749,950.12 is: 1,034,931.18
Step by Step Solution
- Step 1: Write the proportion equation
1,353,562.12 : 1,867,915.75 = 749,950.12 : x - Step 2: Convert to fraction form
1,353,562.12/1,867,915.75 = 749,950.12/x - Step 3: Cross multiply
1,353,562.12x = 1,867,915.75 × 749,950.12 - Step 4: Simplify right side
1,353,562.12x = 1,400,843,640,862.39 - Step 5: Solve for x
x = 1,400,843,640,862.39/1,353,562.12 - Step 6: Final answer
x = 1,034,931.18
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1.5x scale
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.