Finding the Fourth Proportional to 841,392.72, 1,161,113.40 and 518,973.84
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Solution
The fourth proportional to 841,392.72, 1,161,113.40 and 518,973.84 is: 716,178.62
Step by Step Solution
- Step 1: Write the proportion equation
841,392.72 : 1,161,113.40 = 518,973.84 : x - Step 2: Convert to fraction form
841,392.72/1,161,113.40 = 518,973.84/x - Step 3: Cross multiply
841,392.72x = 1,161,113.40 × 518,973.84 - Step 4: Simplify right side
841,392.72x = 602,587,479,873.46 - Step 5: Solve for x
x = 602,587,479,873.46/841,392.72 - Step 6: Final answer
x = 716,178.62
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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.