Finding the Fourth Proportional to 1,025,490.24, 1,538,489.12 and 426,271.68
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Solution
The fourth proportional to 1,025,490.24, 1,538,489.12 and 426,271.68 is: 639,513.00
Step by Step Solution
- Step 1: Write the proportion equation
1,025,490.24 : 1,538,489.12 = 426,271.68 : x - Step 2: Convert to fraction form
1,025,490.24/1,538,489.12 = 426,271.68/x - Step 3: Cross multiply
1,025,490.24x = 1,538,489.12 × 426,271.68 - Step 4: Simplify right side
1,025,490.24x = 655,814,341,844.12 - Step 5: Solve for x
x = 655,814,341,844.12/1,025,490.24 - Step 6: Final answer
x = 639,513.00
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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.