Finding the Fourth Proportional to 817,751,503.70, 1,226,627,255.55 and 495,265,231.70
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Solution
The fourth proportional to 817,751,503.70, 1,226,627,255.55 and 495,265,231.70 is: 742,897,847.55
Step by Step Solution
- Step 1: Write the proportion equation
817,751,503.70 : 1,226,627,255.55 = 495,265,231.70 : x - Step 2: Convert to fraction form
817,751,503.70/1,226,627,255.55 = 495,265,231.70/x - Step 3: Cross multiply
817,751,503.70x = 1,226,627,255.55 × 495,265,231.70 - Step 4: Simplify right side
817,751,503.70x = 607,505,831,929,505,792 - Step 5: Solve for x
x = 607,505,831,929,505,792/817,751,503.70 - Step 6: Final answer
x = 742,897,847.55
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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.