Finding the Fourth Proportional to 908,740.40, 1,254,010.58 and 500,840.99
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Solution
The fourth proportional to 908,740.40, 1,254,010.58 and 500,840.99 is: 691,132.36
Step by Step Solution
- Step 1: Write the proportion equation
908,740.40 : 1,254,010.58 = 500,840.99 : x - Step 2: Convert to fraction form
908,740.40/1,254,010.58 = 500,840.99/x - Step 3: Cross multiply
908,740.40x = 1,254,010.58 × 500,840.99 - Step 4: Simplify right side
908,740.40x = 628,059,900,357.67 - Step 5: Solve for x
x = 628,059,900,357.67/908,740.40 - Step 6: Final answer
x = 691,132.36
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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.