Finding the Fourth Proportional to 561,305.31, 774,602.10 and 319,587.99
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Solution
The fourth proportional to 561,305.31, 774,602.10 and 319,587.99 is: 441,031.87
Step by Step Solution
- Step 1: Write the proportion equation
561,305.31 : 774,602.10 = 319,587.99 : x - Step 2: Convert to fraction form
561,305.31/774,602.10 = 319,587.99/x - Step 3: Cross multiply
561,305.31x = 774,602.10 × 319,587.99 - Step 4: Simplify right side
561,305.31x = 247,553,528,188.78 - Step 5: Solve for x
x = 247,553,528,188.78/561,305.31 - Step 6: Final answer
x = 441,031.87
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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.