Finding the Fourth Proportional to 493,507.20, 740,260.80 and 458,077.80
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Solution
The fourth proportional to 493,507.20, 740,260.80 and 458,077.80 is: 687,116.70
Step by Step Solution
- Step 1: Write the proportion equation
493,507.20 : 740,260.80 = 458,077.80 : x - Step 2: Convert to fraction form
493,507.20/740,260.80 = 458,077.80/x - Step 3: Cross multiply
493,507.20x = 740,260.80 × 458,077.80 - Step 4: Simplify right side
493,507.20x = 339,097,038,690.24 - Step 5: Solve for x
x = 339,097,038,690.24/493,507.20 - Step 6: Final answer
x = 687,116.70
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1.5x scale
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.