Finding the Fourth Proportional to 898,462.98, 1,239,869.50 and 490,563.55
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Solution
The fourth proportional to 898,462.98, 1,239,869.50 and 490,563.55 is: 676,972.56
Step by Step Solution
- Step 1: Write the proportion equation
898,462.98 : 1,239,869.50 = 490,563.55 : x - Step 2: Convert to fraction form
898,462.98/1,239,869.50 = 490,563.55/x - Step 3: Cross multiply
898,462.98x = 1,239,869.50 × 490,563.55 - Step 4: Simplify right side
898,462.98x = 608,234,781,003.91 - Step 5: Solve for x
x = 608,234,781,003.91/898,462.98 - Step 6: Final answer
x = 676,972.56
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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.