Finding the Fourth Proportional to 523,451.28, 721,637.16 and 353,416.08
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Solution
The fourth proportional to 523,451.28, 721,637.16 and 353,416.08 is: 487,224.29
Step by Step Solution
- Step 1: Write the proportion equation
523,451.28 : 721,637.16 = 353,416.08 : x - Step 2: Convert to fraction form
523,451.28/721,637.16 = 353,416.08/x - Step 3: Cross multiply
523,451.28x = 721,637.16 × 353,416.08 - Step 4: Simplify right side
523,451.28x = 255,038,176,269.53 - Step 5: Solve for x
x = 255,038,176,269.53/523,451.28 - Step 6: Final answer
x = 487,224.29
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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.