Finding the Fourth Proportional to 785,122.60, 1,177,683.90 and 727,385.80
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Solution
The fourth proportional to 785,122.60, 1,177,683.90 and 727,385.80 is: 1,091,078.70
Step by Step Solution
- Step 1: Write the proportion equation
785,122.60 : 1,177,683.90 = 727,385.80 : x - Step 2: Convert to fraction form
785,122.60/1,177,683.90 = 727,385.80/x - Step 3: Cross multiply
785,122.60x = 1,177,683.90 × 727,385.80 - Step 4: Simplify right side
785,122.60x = 856,630,545,748.62 - Step 5: Solve for x
x = 856,630,545,748.62/785,122.60 - Step 6: Final answer
x = 1,091,078.70
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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.