Finding the Fourth Proportional to 770,730,494.58, 1,063,609,135.79 and 418,306,490.73
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Solution
The fourth proportional to 770,730,494.58, 1,063,609,135.79 and 418,306,490.73 is: 577,263,528.86
Step by Step Solution
- Step 1: Write the proportion equation
770,730,494.58 : 1,063,609,135.79 = 418,306,490.73 : x - Step 2: Convert to fraction form
770,730,494.58/1,063,609,135.79 = 418,306,490.73/x - Step 3: Cross multiply
770,730,494.58x = 1,063,609,135.79 × 418,306,490.73 - Step 4: Simplify right side
770,730,494.58x = 444,914,605,098,591,424 - Step 5: Solve for x
x = 444,914,605,098,591,424/770,730,494.58 - Step 6: Final answer
x = 577,263,528.86
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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.