Finding the Fourth Proportional to 516,901.76, 713,026.88 and 322,973.12
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Solution
The fourth proportional to 516,901.76, 713,026.88 and 322,973.12 is: 445,516.99
Step by Step Solution
- Step 1: Write the proportion equation
516,901.76 : 713,026.88 = 322,973.12 : x - Step 2: Convert to fraction form
516,901.76/713,026.88 = 322,973.12/x - Step 3: Cross multiply
516,901.76x = 713,026.88 × 322,973.12 - Step 4: Simplify right side
516,901.76x = 230,288,516,077.47 - Step 5: Solve for x
x = 230,288,516,077.47/516,901.76 - Step 6: Final answer
x = 445,516.99
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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.