Finding the Fourth Proportional to 780,358.68, 1,077,009.30 and 458,245.08
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Solution
The fourth proportional to 780,358.68, 1,077,009.30 and 458,245.08 is: 632,445.34
Step by Step Solution
- Step 1: Write the proportion equation
780,358.68 : 1,077,009.30 = 458,245.08 : x - Step 2: Convert to fraction form
780,358.68/1,077,009.30 = 458,245.08/x - Step 3: Cross multiply
780,358.68x = 1,077,009.30 × 458,245.08 - Step 4: Simplify right side
780,358.68x = 493,534,212,839.24 - Step 5: Solve for x
x = 493,534,212,839.24/780,358.68 - Step 6: Final answer
x = 632,445.34
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1.5x scale
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.