Finding the Fourth Proportional to 938,575.84, 1,296,303.80 and 636,244.96
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Solution
The fourth proportional to 938,575.84, 1,296,303.80 and 636,244.96 is: 878,742.80
Step by Step Solution
- Step 1: Write the proportion equation
938,575.84 : 1,296,303.80 = 636,244.96 : x - Step 2: Convert to fraction form
938,575.84/1,296,303.80 = 636,244.96/x - Step 3: Cross multiply
938,575.84x = 1,296,303.80 × 636,244.96 - Step 4: Simplify right side
938,575.84x = 824,766,759,378.85 - Step 5: Solve for x
x = 824,766,759,378.85/938,575.84 - Step 6: Final answer
x = 878,742.80
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1.5x scale
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.