Finding the Fourth Proportional to 1,422,861.24, 1,963,506.74 and 778,267.48
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Solution
The fourth proportional to 1,422,861.24, 1,963,506.74 and 778,267.48 is: 1,073,986.27
Step by Step Solution
- Step 1: Write the proportion equation
1,422,861.24 : 1,963,506.74 = 778,267.48 : x - Step 2: Convert to fraction form
1,422,861.24/1,963,506.74 = 778,267.48/x - Step 3: Cross multiply
1,422,861.24x = 1,963,506.74 × 778,267.48 - Step 4: Simplify right side
1,422,861.24x = 1,528,133,442,502.82 - Step 5: Solve for x
x = 1,528,133,442,502.82/1,422,861.24 - Step 6: Final answer
x = 1,073,986.27
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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.