Finding the Fourth Proportional to 921,507.57, 1,271,686.35 and 513,635.31
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Solution
The fourth proportional to 921,507.57, 1,271,686.35 and 513,635.31 is: 708,820.02
Step by Step Solution
- Step 1: Write the proportion equation
921,507.57 : 1,271,686.35 = 513,635.31 : x - Step 2: Convert to fraction form
921,507.57/1,271,686.35 = 513,635.31/x - Step 3: Cross multiply
921,507.57x = 1,271,686.35 × 513,635.31 - Step 4: Simplify right side
921,507.57x = 653,183,012,605.02 - Step 5: Solve for x
x = 653,183,012,605.02/921,507.57 - Step 6: Final answer
x = 708,820.02
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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.