Finding the Fourth Proportional to 1,154,312.19, 1,592,948.30 and 645,014.57
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Solution
The fourth proportional to 1,154,312.19, 1,592,948.30 and 645,014.57 is: 890,118.69
Step by Step Solution
- Step 1: Write the proportion equation
1,154,312.19 : 1,592,948.30 = 645,014.57 : x - Step 2: Convert to fraction form
1,154,312.19/1,592,948.30 = 645,014.57/x - Step 3: Cross multiply
1,154,312.19x = 1,592,948.30 × 645,014.57 - Step 4: Simplify right side
1,154,312.19x = 1,027,474,851,566.92 - Step 5: Solve for x
x = 1,027,474,851,566.92/1,154,312.19 - Step 6: Final answer
x = 890,118.69
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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.