Finding the Fourth Proportional to 547,112.49, 755,012.36 and 317,726.18
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Solution
The fourth proportional to 547,112.49, 755,012.36 and 317,726.18 is: 438,460.45
Step by Step Solution
- Step 1: Write the proportion equation
547,112.49 : 755,012.36 = 317,726.18 : x - Step 2: Convert to fraction form
547,112.49/755,012.36 = 317,726.18/x - Step 3: Cross multiply
547,112.49x = 755,012.36 × 317,726.18 - Step 4: Simplify right side
547,112.49x = 239,887,191,058.93 - Step 5: Solve for x
x = 239,887,191,058.93/547,112.49 - Step 6: Final answer
x = 438,460.45
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1.5x scale
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.