Finding the Fourth Proportional to 713,056.79, 984,026.12 and 390,759.97
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Solution
The fourth proportional to 713,056.79, 984,026.12 and 390,759.97 is: 539,253.01
Step by Step Solution
- Step 1: Write the proportion equation
713,056.79 : 984,026.12 = 390,759.97 : x - Step 2: Convert to fraction form
713,056.79/984,026.12 = 390,759.97/x - Step 3: Cross multiply
713,056.79x = 984,026.12 × 390,759.97 - Step 4: Simplify right side
713,056.79x = 384,518,017,130.42 - Step 5: Solve for x
x = 384,518,017,130.42/713,056.79 - Step 6: Final answer
x = 539,253.01
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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.