Finding the Fourth Proportional to 1,242,963.99, 1,715,422.05 and 759,811.95
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Solution
The fourth proportional to 1,242,963.99, 1,715,422.05 and 759,811.95 is: 1,048,621.02
Step by Step Solution
- Step 1: Write the proportion equation
1,242,963.99 : 1,715,422.05 = 759,811.95 : x - Step 2: Convert to fraction form
1,242,963.99/1,715,422.05 = 759,811.95/x - Step 3: Cross multiply
1,242,963.99x = 1,715,422.05 × 759,811.95 - Step 4: Simplify right side
1,242,963.99x = 1,303,398,172,883.50 - Step 5: Solve for x
x = 1,303,398,172,883.50/1,242,963.99 - Step 6: Final answer
x = 1,048,621.02
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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.