Finding the Fourth Proportional to 740,395.79, 1,021,752.99 and 434,477.31
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Solution
The fourth proportional to 740,395.79, 1,021,752.99 and 434,477.31 is: 599,582.68
Step by Step Solution
- Step 1: Write the proportion equation
740,395.79 : 1,021,752.99 = 434,477.31 : x - Step 2: Convert to fraction form
740,395.79/1,021,752.99 = 434,477.31/x - Step 3: Cross multiply
740,395.79x = 1,021,752.99 × 434,477.31 - Step 4: Simplify right side
740,395.79x = 443,928,490,579.66 - Step 5: Solve for x
x = 443,928,490,579.66/740,395.79 - Step 6: Final answer
x = 599,582.68
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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.