Finding the Fourth Proportional to 623,725.20, 935,587.80 and 615,430.80
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Solution
The fourth proportional to 623,725.20, 935,587.80 and 615,430.80 is: 923,146.20
Step by Step Solution
- Step 1: Write the proportion equation
623,725.20 : 935,587.80 = 615,430.80 : x - Step 2: Convert to fraction form
623,725.20/935,587.80 = 615,430.80/x - Step 3: Cross multiply
623,725.20x = 935,587.80 × 615,430.80 - Step 4: Simplify right side
623,725.20x = 575,789,548,224.24 - Step 5: Solve for x
x = 575,789,548,224.24/623,725.20 - Step 6: Final answer
x = 923,146.20
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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.