Finding the Fourth Proportional to 875,289.12, 1,207,899.20 and 472,881.12
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Solution
The fourth proportional to 875,289.12, 1,207,899.20 and 472,881.12 is: 652,576.06
Step by Step Solution
- Step 1: Write the proportion equation
875,289.12 : 1,207,899.20 = 472,881.12 : x - Step 2: Convert to fraction form
875,289.12/1,207,899.20 = 472,881.12/x - Step 3: Cross multiply
875,289.12x = 1,207,899.20 × 472,881.12 - Step 4: Simplify right side
875,289.12x = 571,192,726,543.10 - Step 5: Solve for x
x = 571,192,726,543.10/875,289.12 - Step 6: Final answer
x = 652,576.06
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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.