Finding the Fourth Proportional to 919,319.99, 1,268,702.51 and 766,101.66
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Solution
The fourth proportional to 919,319.99, 1,268,702.51 and 766,101.66 is: 1,057,254.40
Step by Step Solution
- Step 1: Write the proportion equation
919,319.99 : 1,268,702.51 = 766,101.66 : x - Step 2: Convert to fraction form
919,319.99/1,268,702.51 = 766,101.66/x - Step 3: Cross multiply
919,319.99x = 1,268,702.51 × 766,101.66 - Step 4: Simplify right side
919,319.99x = 971,955,095,126.66 - Step 5: Solve for x
x = 971,955,095,126.66/919,319.99 - Step 6: Final answer
x = 1,057,254.40
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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.