Finding the Fourth Proportional to 645,772.68, 891,152.40 and 373,852.08
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Solution
The fourth proportional to 645,772.68, 891,152.40 and 373,852.08 is: 515,907.82
Step by Step Solution
- Step 1: Write the proportion equation
645,772.68 : 891,152.40 = 373,852.08 : x - Step 2: Convert to fraction form
645,772.68/891,152.40 = 373,852.08/x - Step 3: Cross multiply
645,772.68x = 891,152.40 × 373,852.08 - Step 4: Simplify right side
645,772.68x = 333,159,178,336.99 - Step 5: Solve for x
x = 333,159,178,336.99/645,772.68 - Step 6: Final answer
x = 515,907.82
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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.