Finding the Fourth Proportional to 1,281,472.90, 1,920,897.15 and 748,719.70
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Solution
The fourth proportional to 1,281,472.90, 1,920,897.15 and 748,719.70 is: 1,122,312.88
Step by Step Solution
- Step 1: Write the proportion equation
1,281,472.90 : 1,920,897.15 = 748,719.70 : x - Step 2: Convert to fraction form
1,281,472.90/1,920,897.15 = 748,719.70/x - Step 3: Cross multiply
1,281,472.90x = 1,920,897.15 × 748,719.70 - Step 4: Simplify right side
1,281,472.90x = 1,438,213,537,878.85 - Step 5: Solve for x
x = 1,438,213,537,878.85/1,281,472.90 - Step 6: Final answer
x = 1,122,312.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.