Finding the Fourth Proportional to 1,607,607.09, 2,218,417.60 and 928,503.09
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Solution
The fourth proportional to 1,607,607.09, 2,218,417.60 and 928,503.09 is: 1,281,287.95
Step by Step Solution
- Step 1: Write the proportion equation
1,607,607.09 : 2,218,417.60 = 928,503.09 : x - Step 2: Convert to fraction form
1,607,607.09/2,218,417.60 = 928,503.09/x - Step 3: Cross multiply
1,607,607.09x = 2,218,417.60 × 928,503.09 - Step 4: Simplify right side
1,607,607.09x = 2,059,807,596,510.38 - Step 5: Solve for x
x = 2,059,807,596,510.38/1,607,607.09 - Step 6: Final answer
x = 1,281,287.95
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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.