Finding the Fourth Proportional to 785,220.72, 1,176,984.36 and 385,396.08
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Solution
The fourth proportional to 785,220.72, 1,176,984.36 and 385,396.08 is: 577,678.54
Step by Step Solution
- Step 1: Write the proportion equation
785,220.72 : 1,176,984.36 = 385,396.08 : x - Step 2: Convert to fraction form
785,220.72/1,176,984.36 = 385,396.08/x - Step 3: Cross multiply
785,220.72x = 1,176,984.36 × 385,396.08 - Step 4: Simplify right side
785,220.72x = 453,605,158,565.31 - Step 5: Solve for x
x = 453,605,158,565.31/785,220.72 - Step 6: Final answer
x = 577,678.54
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.