Finding the Fourth Proportional to 785,248.20, 1,083,647.70 and 445,722.12
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Solution
The fourth proportional to 785,248.20, 1,083,647.70 and 445,722.12 is: 615,099.47
Step by Step Solution
- Step 1: Write the proportion equation
785,248.20 : 1,083,647.70 = 445,722.12 : x - Step 2: Convert to fraction form
785,248.20/1,083,647.70 = 445,722.12/x - Step 3: Cross multiply
785,248.20x = 1,083,647.70 × 445,722.12 - Step 4: Simplify right side
785,248.20x = 483,005,750,177.12 - Step 5: Solve for x
x = 483,005,750,177.12/785,248.20 - Step 6: Final answer
x = 615,099.47
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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.