Finding the Fourth Proportional to 778,974.30, 1,168,461.45 and 742,232.70
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Solution
The fourth proportional to 778,974.30, 1,168,461.45 and 742,232.70 is: 1,113,349.05
Step by Step Solution
- Step 1: Write the proportion equation
778,974.30 : 1,168,461.45 = 742,232.70 : x - Step 2: Convert to fraction form
778,974.30/1,168,461.45 = 742,232.70/x - Step 3: Cross multiply
778,974.30x = 1,168,461.45 × 742,232.70 - Step 4: Simplify right side
778,974.30x = 867,270,296,879.42 - Step 5: Solve for x
x = 867,270,296,879.42/778,974.30 - Step 6: Final answer
x = 1,113,349.05
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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.