Finding the Fourth Proportional to 506,457.68, 698,922.12 and 280,118.48
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Solution
The fourth proportional to 506,457.68, 698,922.12 and 280,118.48 is: 386,569.32
Step by Step Solution
- Step 1: Write the proportion equation
506,457.68 : 698,922.12 = 280,118.48 : x - Step 2: Convert to fraction form
506,457.68/698,922.12 = 280,118.48/x - Step 3: Cross multiply
506,457.68x = 698,922.12 × 280,118.48 - Step 4: Simplify right side
506,457.68x = 195,781,001,892.78 - Step 5: Solve for x
x = 195,781,001,892.78/506,457.68 - Step 6: Final answer
x = 386,569.32
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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.