Finding the Fourth Proportional to 964,987.76, 1,331,657.42 and 557,075.81
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Solution
The fourth proportional to 964,987.76, 1,331,657.42 and 557,075.81 is: 768,749.79
Step by Step Solution
- Step 1: Write the proportion equation
964,987.76 : 1,331,657.42 = 557,075.81 : x - Step 2: Convert to fraction form
964,987.76/1,331,657.42 = 557,075.81/x - Step 3: Cross multiply
964,987.76x = 1,331,657.42 × 557,075.81 - Step 4: Simplify right side
964,987.76x = 741,834,136,432.78 - Step 5: Solve for x
x = 741,834,136,432.78/964,987.76 - Step 6: Final answer
x = 768,749.79
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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.