Finding the Fourth Proportional to 1,438,319.52, 1,984,878.84 and 793,739.76
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Solution
The fourth proportional to 1,438,319.52, 1,984,878.84 and 793,739.76 is: 1,095,359.71
Step by Step Solution
- Step 1: Write the proportion equation
1,438,319.52 : 1,984,878.84 = 793,739.76 : x - Step 2: Convert to fraction form
1,438,319.52/1,984,878.84 = 793,739.76/x - Step 3: Cross multiply
1,438,319.52x = 1,984,878.84 × 793,739.76 - Step 4: Simplify right side
1,438,319.52x = 1,575,477,254,090.68 - Step 5: Solve for x
x = 1,575,477,254,090.68/1,438,319.52 - Step 6: Final answer
x = 1,095,359.71
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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.