Finding the Fourth Proportional to 717,804.95, 990,615.05 and 395,514.95
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Solution
The fourth proportional to 717,804.95, 990,615.05 and 395,514.95 is: 545,835.00
Step by Step Solution
- Step 1: Write the proportion equation
717,804.95 : 990,615.05 = 395,514.95 : x - Step 2: Convert to fraction form
717,804.95/990,615.05 = 395,514.95/x - Step 3: Cross multiply
717,804.95x = 990,615.05 × 395,514.95 - Step 4: Simplify right side
717,804.95x = 391,803,061,970.00 - Step 5: Solve for x
x = 391,803,061,970.00/717,804.95 - Step 6: Final answer
x = 545,835.00
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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.