Finding the Fourth Proportional to 1,318,326.62, 1,819,339.72 and 745,332.62
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Solution
The fourth proportional to 1,318,326.62, 1,819,339.72 and 745,332.62 is: 1,028,586.71
Step by Step Solution
- Step 1: Write the proportion equation
1,318,326.62 : 1,819,339.72 = 745,332.62 : x - Step 2: Convert to fraction form
1,318,326.62/1,819,339.72 = 745,332.62/x - Step 3: Cross multiply
1,318,326.62x = 1,819,339.72 × 745,332.62 - Step 4: Simplify right side
1,318,326.62x = 1,356,013,240,177.67 - Step 5: Solve for x
x = 1,356,013,240,177.67/1,318,326.62 - Step 6: Final answer
x = 1,028,586.71
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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.