Finding the Fourth Proportional to 466,479.05, 643,939.71 and 313,605.90
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Solution
The fourth proportional to 466,479.05, 643,939.71 and 313,605.90 is: 432,909.68
Step by Step Solution
- Step 1: Write the proportion equation
466,479.05 : 643,939.71 = 313,605.90 : x - Step 2: Convert to fraction form
466,479.05/643,939.71 = 313,605.90/x - Step 3: Cross multiply
466,479.05x = 643,939.71 × 313,605.90 - Step 4: Simplify right side
466,479.05x = 201,943,292,300.29 - Step 5: Solve for x
x = 201,943,292,300.29/466,479.05 - Step 6: Final answer
x = 432,909.68
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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.