Finding the Fourth Proportional to 520,985.99, 781,470.45 and 165,995.19
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Solution
The fourth proportional to 520,985.99, 781,470.45 and 165,995.19 is: 248,990.06
Step by Step Solution
- Step 1: Write the proportion equation
520,985.99 : 781,470.45 = 165,995.19 : x - Step 2: Convert to fraction form
520,985.99/781,470.45 = 165,995.19/x - Step 3: Cross multiply
520,985.99x = 781,470.45 × 165,995.19 - Step 4: Simplify right side
520,985.99x = 129,720,335,827.14 - Step 5: Solve for x
x = 129,720,335,827.14/520,985.99 - Step 6: Final answer
x = 248,990.06
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.