Finding the Fourth Proportional to 487,298.36, 672,649.80 and 293,712.99
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Solution
The fourth proportional to 487,298.36, 672,649.80 and 293,712.99 is: 405,431.25
Step by Step Solution
- Step 1: Write the proportion equation
487,298.36 : 672,649.80 = 293,712.99 : x - Step 2: Convert to fraction form
487,298.36/672,649.80 = 293,712.99/x - Step 3: Cross multiply
487,298.36x = 672,649.80 × 293,712.99 - Step 4: Simplify right side
487,298.36x = 197,565,982,009.18 - Step 5: Solve for x
x = 197,565,982,009.18/487,298.36 - Step 6: Final answer
x = 405,431.25
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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.