Finding the Fourth Proportional to 526,386.16, 726,368.70 and 311,488.84
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Solution
The fourth proportional to 526,386.16, 726,368.70 and 311,488.84 is: 429,828.44
Step by Step Solution
- Step 1: Write the proportion equation
526,386.16 : 726,368.70 = 311,488.84 : x - Step 2: Convert to fraction form
526,386.16/726,368.70 = 311,488.84/x - Step 3: Cross multiply
526,386.16x = 726,368.70 × 311,488.84 - Step 4: Simplify right side
526,386.16x = 226,255,743,775.31 - Step 5: Solve for x
x = 226,255,743,775.31/526,386.16 - Step 6: Final answer
x = 429,828.44
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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.