Finding the Fourth Proportional to 638,547.20, 957,377.88 and 339,237.98
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Solution
The fourth proportional to 638,547.20, 957,377.88 and 339,237.98 is: 508,621.66
Step by Step Solution
- Step 1: Write the proportion equation
638,547.20 : 957,377.88 = 339,237.98 : x - Step 2: Convert to fraction form
638,547.20/957,377.88 = 339,237.98/x - Step 3: Cross multiply
638,547.20x = 957,377.88 × 339,237.98 - Step 4: Simplify right side
638,547.20x = 324,778,933,320.99 - Step 5: Solve for x
x = 324,778,933,320.99/638,547.20 - Step 6: Final answer
x = 508,621.66
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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.