Finding the Fourth Proportional to 485,862.93, 670,461.98 and 281,898.05
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Solution
The fourth proportional to 485,862.93, 670,461.98 and 281,898.05 is: 389,002.55
Step by Step Solution
- Step 1: Write the proportion equation
485,862.93 : 670,461.98 = 281,898.05 : x - Step 2: Convert to fraction form
485,862.93/670,461.98 = 281,898.05/x - Step 3: Cross multiply
485,862.93x = 670,461.98 × 281,898.05 - Step 4: Simplify right side
485,862.93x = 189,001,919,999.34 - Step 5: Solve for x
x = 189,001,919,999.34/485,862.93 - Step 6: Final answer
x = 389,002.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.