Finding the Fourth Proportional to 788,395.95, 1,182,671.34 and 212,012.10
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Solution
The fourth proportional to 788,395.95, 1,182,671.34 and 212,012.10 is: 318,038.97
Step by Step Solution
- Step 1: Write the proportion equation
788,395.95 : 1,182,671.34 = 212,012.10 : x - Step 2: Convert to fraction form
788,395.95/1,182,671.34 = 212,012.10/x - Step 3: Cross multiply
788,395.95x = 1,182,671.34 × 212,012.10 - Step 4: Simplify right side
788,395.95x = 250,740,634,403.21 - Step 5: Solve for x
x = 250,740,634,403.21/788,395.95 - Step 6: Final answer
x = 318,038.97
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.