Finding the Fourth Proportional to 826,072.58, 1,239,182.68 and 257,458.50
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Solution
The fourth proportional to 826,072.58, 1,239,182.68 and 257,458.50 is: 386,210.75
Step by Step Solution
- Step 1: Write the proportion equation
826,072.58 : 1,239,182.68 = 257,458.50 : x - Step 2: Convert to fraction form
826,072.58/1,239,182.68 = 257,458.50/x - Step 3: Cross multiply
826,072.58x = 1,239,182.68 × 257,458.50 - Step 4: Simplify right side
826,072.58x = 319,038,113,133.77 - Step 5: Solve for x
x = 319,038,113,133.77/826,072.58 - Step 6: Final answer
x = 386,210.75
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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.