Finding the Fourth Proportional to 1,199,513.68, 1,799,585.64 and 431,088.99
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Solution
The fourth proportional to 1,199,513.68, 1,799,585.64 and 431,088.99 is: 646,746.73
Step by Step Solution
- Step 1: Write the proportion equation
1,199,513.68 : 1,799,585.64 = 431,088.99 : x - Step 2: Convert to fraction form
1,199,513.68/1,799,585.64 = 431,088.99/x - Step 3: Cross multiply
1,199,513.68x = 1,799,585.64 × 431,088.99 - Step 4: Simplify right side
1,199,513.68x = 775,781,555,966.10 - Step 5: Solve for x
x = 775,781,555,966.10/1,199,513.68 - Step 6: Final answer
x = 646,746.73
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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.