Finding the Fourth Proportional to 1,970,657.48, 2,720,246.82 and 1,291,637.72
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Solution
The fourth proportional to 1,970,657.48, 2,720,246.82 and 1,291,637.72 is: 1,782,944.75
Step by Step Solution
- Step 1: Write the proportion equation
1,970,657.48 : 2,720,246.82 = 1,291,637.72 : x - Step 2: Convert to fraction form
1,970,657.48/2,720,246.82 = 1,291,637.72/x - Step 3: Cross multiply
1,970,657.48x = 2,720,246.82 × 1,291,637.72 - Step 4: Simplify right side
1,970,657.48x = 3,513,573,400,422.05 - Step 5: Solve for x
x = 3,513,573,400,422.05/1,970,657.48 - Step 6: Final answer
x = 1,782,944.75
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.