Finding the Fourth Proportional to 2,124,354.60, 2,931,572.30 and 1,157,492.88
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Solution
The fourth proportional to 2,124,354.60, 2,931,572.30 and 1,157,492.88 is: 1,597,319.99
Step by Step Solution
- Step 1: Write the proportion equation
2,124,354.60 : 2,931,572.30 = 1,157,492.88 : x - Step 2: Convert to fraction form
2,124,354.60/2,931,572.30 = 1,157,492.88/x - Step 3: Cross multiply
2,124,354.60x = 2,931,572.30 × 1,157,492.88 - Step 4: Simplify right side
2,124,354.60x = 3,393,274,064,455.22 - Step 5: Solve for x
x = 3,393,274,064,455.22/2,124,354.60 - Step 6: Final answer
x = 1,597,319.99
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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.