Finding the Fourth Proportional to 1,326,788.19, 1,991,215.67 and 924,812.15
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Solution
The fourth proportional to 1,326,788.19, 1,991,215.67 and 924,812.15 is: 1,387,938.52
Step by Step Solution
- Step 1: Write the proportion equation
1,326,788.19 : 1,991,215.67 = 924,812.15 : x - Step 2: Convert to fraction form
1,326,788.19/1,991,215.67 = 924,812.15/x - Step 3: Cross multiply
1,326,788.19x = 1,991,215.67 × 924,812.15 - Step 4: Simplify right side
1,326,788.19x = 1,841,500,430,306.25 - Step 5: Solve for x
x = 1,841,500,430,306.25/1,326,788.19 - Step 6: Final answer
x = 1,387,938.52
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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.