Finding the Fourth Proportional to 563,673.84, 777,869.84 and 309,026.80
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Solution
The fourth proportional to 563,673.84, 777,869.84 and 309,026.80 is: 426,456.95
Step by Step Solution
- Step 1: Write the proportion equation
563,673.84 : 777,869.84 = 309,026.80 : x - Step 2: Convert to fraction form
563,673.84/777,869.84 = 309,026.80/x - Step 3: Cross multiply
563,673.84x = 777,869.84 × 309,026.80 - Step 4: Simplify right side
563,673.84x = 240,382,627,471.71 - Step 5: Solve for x
x = 240,382,627,471.71/563,673.84 - Step 6: Final answer
x = 426,456.95
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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.