Finding the Fourth Proportional to 546,643.70, 819,965.55 and 472,915.70
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Solution
The fourth proportional to 546,643.70, 819,965.55 and 472,915.70 is: 709,373.55
Step by Step Solution
- Step 1: Write the proportion equation
546,643.70 : 819,965.55 = 472,915.70 : x - Step 2: Convert to fraction form
546,643.70/819,965.55 = 472,915.70/x - Step 3: Cross multiply
546,643.70x = 819,965.55 × 472,915.70 - Step 4: Simplify right side
546,643.70x = 387,774,582,054.14 - Step 5: Solve for x
x = 387,774,582,054.14/546,643.70 - Step 6: Final answer
x = 709,373.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.