Finding the Fourth Proportional to 542,772.09, 812,828.99 and 382,454.06
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Solution
The fourth proportional to 542,772.09, 812,828.99 and 382,454.06 is: 572,744.53
Step by Step Solution
- Step 1: Write the proportion equation
542,772.09 : 812,828.99 = 382,454.06 : x - Step 2: Convert to fraction form
542,772.09/812,828.99 = 382,454.06/x - Step 3: Cross multiply
542,772.09x = 812,828.99 × 382,454.06 - Step 4: Simplify right side
542,772.09x = 310,869,744,203.19 - Step 5: Solve for x
x = 310,869,744,203.19/542,772.09 - Step 6: Final answer
x = 572,744.53
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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.