Finding the Fourth Proportional to 1,865,430.60, 2,798,145.90 and 603,385.80
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Solution
The fourth proportional to 1,865,430.60, 2,798,145.90 and 603,385.80 is: 905,078.70
Step by Step Solution
- Step 1: Write the proportion equation
1,865,430.60 : 2,798,145.90 = 603,385.80 : x - Step 2: Convert to fraction form
1,865,430.60/2,798,145.90 = 603,385.80/x - Step 3: Cross multiply
1,865,430.60x = 2,798,145.90 × 603,385.80 - Step 4: Simplify right side
1,865,430.60x = 1,688,361,502,388.22 - Step 5: Solve for x
x = 1,688,361,502,388.22/1,865,430.60 - Step 6: Final answer
x = 905,078.70
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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.