Finding the Fourth Proportional to 915,919.68, 1,374,004.71 and 316,720.02
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Solution
The fourth proportional to 915,919.68, 1,374,004.71 and 316,720.02 is: 475,123.32
Step by Step Solution
- Step 1: Write the proportion equation
915,919.68 : 1,374,004.71 = 316,720.02 : x - Step 2: Convert to fraction form
915,919.68/1,374,004.71 = 316,720.02/x - Step 3: Cross multiply
915,919.68x = 1,374,004.71 × 316,720.02 - Step 4: Simplify right side
915,919.68x = 435,174,799,231.29 - Step 5: Solve for x
x = 435,174,799,231.29/915,919.68 - Step 6: Final answer
x = 475,123.32
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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.