Finding the Fourth Proportional to 877,316.04, 1,316,020.86 and 278,325.09
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Solution
The fourth proportional to 877,316.04, 1,316,020.86 and 278,325.09 is: 417,502.48
Step by Step Solution
- Step 1: Write the proportion equation
877,316.04 : 1,316,020.86 = 278,325.09 : x - Step 2: Convert to fraction form
877,316.04/1,316,020.86 = 278,325.09/x - Step 3: Cross multiply
877,316.04x = 1,316,020.86 × 278,325.09 - Step 4: Simplify right side
877,316.04x = 366,281,624,301.38 - Step 5: Solve for x
x = 366,281,624,301.38/877,316.04 - Step 6: Final answer
x = 417,502.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.