Finding the Fourth Proportional to 1,025,989.95, 1,416,773.99 and 639,465.04
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Solution
The fourth proportional to 1,025,989.95, 1,416,773.99 and 639,465.04 is: 883,027.59
Step by Step Solution
- Step 1: Write the proportion equation
1,025,989.95 : 1,416,773.99 = 639,465.04 : x - Step 2: Convert to fraction form
1,025,989.95/1,416,773.99 = 639,465.04/x - Step 3: Cross multiply
1,025,989.95x = 1,416,773.99 × 639,465.04 - Step 4: Simplify right side
1,025,989.95x = 905,977,436,186.31 - Step 5: Solve for x
x = 905,977,436,186.31/1,025,989.95 - Step 6: Final answer
x = 883,027.59
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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.