Finding the Fourth Proportional to 917,309.70, 1,375,964.55 and 243,389.70
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Solution
The fourth proportional to 917,309.70, 1,375,964.55 and 243,389.70 is: 365,084.55
Step by Step Solution
- Step 1: Write the proportion equation
917,309.70 : 1,375,964.55 = 243,389.70 : x - Step 2: Convert to fraction form
917,309.70/1,375,964.55 = 243,389.70/x - Step 3: Cross multiply
917,309.70x = 1,375,964.55 × 243,389.70 - Step 4: Simplify right side
917,309.70x = 334,895,599,035.14 - Step 5: Solve for x
x = 334,895,599,035.14/917,309.70 - Step 6: Final answer
x = 365,084.55
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.