Finding the Fourth Proportional to 461,488.68, 636,607.62 and 318,319.56
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Solution
The fourth proportional to 461,488.68, 636,607.62 and 318,319.56 is: 439,110.79
Step by Step Solution
- Step 1: Write the proportion equation
461,488.68 : 636,607.62 = 318,319.56 : x - Step 2: Convert to fraction form
461,488.68/636,607.62 = 318,319.56/x - Step 3: Cross multiply
461,488.68x = 636,607.62 × 318,319.56 - Step 4: Simplify right side
461,488.68x = 202,644,657,491.05 - Step 5: Solve for x
x = 202,644,657,491.05/461,488.68 - Step 6: Final answer
x = 439,110.79
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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.