Finding the Fourth Proportional to 743,821.60, 1,026,968.12 and 571,432.52
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Solution
The fourth proportional to 743,821.60, 1,026,968.12 and 571,432.52 is: 788,956.63
Step by Step Solution
- Step 1: Write the proportion equation
743,821.60 : 1,026,968.12 = 571,432.52 : x - Step 2: Convert to fraction form
743,821.60/1,026,968.12 = 571,432.52/x - Step 3: Cross multiply
743,821.60x = 1,026,968.12 × 571,432.52 - Step 4: Simplify right side
743,821.60x = 586,842,980,771.26 - Step 5: Solve for x
x = 586,842,980,771.26/743,821.60 - Step 6: Final answer
x = 788,956.63
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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.